Ghada World — Science Quizzes EncyclopediaGhada World — Science Quizzes Encyclopedia
Ghada World — A trusted Q&A encyclopedia · 23,105 questions · Part 22 of 47
Q10501: What is the value of x if: x - 21 = 20
Answer: 41
💡 x = 20 + 21 = 41; check: 41 - 21 = 20.
Q10502: What is the missing number: ? + 69 = 85
Answer: 16
💡 Missing number = 85 - 69 = 16; check: 69 + 16 = 85.
Q10503: What is the missing number: ? + 52 = 136
Answer: 84
💡 Missing number = 136 - 52 = 84; check: 52 + 84 = 136.
Q10504: What is the missing number: ? + 110 = 261
Answer: 151
💡 Missing number = 261 - 110 = 151; check: 110 + 151 = 261.
Q10505: What is the missing number: 124 + ? = 230
Answer: 106
💡 Missing number = 230 - 124 = 106; check: 124 + 106 = 230.
Q10506: What is the value of x if: x - 61 = 28
Answer: 89
💡 x = 28 + 61 = 89; check: 89 - 61 = 28.
Q10507: What is the missing number: ? + 60 = 215
Answer: 155
💡 Missing number = 215 - 60 = 155; check: 60 + 155 = 215.
Q10508: What is the missing number: 75 + ? = 86
Answer: 11
💡 Missing number = 86 - 75 = 11; check: 75 + 11 = 86.
Q10509: What is the missing number: 83 + ? = 174
Answer: 91
💡 Missing number = 174 - 83 = 91; check: 83 + 91 = 174.
Q10510: What is the value of x if: x - 9 = 32
Answer: 41
💡 x = 32 + 9 = 41; check: 41 - 9 = 32.
Q10511: What is the missing number: ? + 87 = 158
Answer: 71
💡 Missing number = 158 - 87 = 71; check: 87 + 71 = 158.
Q10512: What is the value of x if: x - 13 = 20
Answer: 33
💡 x = 20 + 13 = 33; check: 33 - 13 = 20.
Q10513: What is the missing number: ? + 114 = 174
Answer: 60
💡 Missing number = 174 - 114 = 60; check: 114 + 60 = 174.
Q10514: What is the value of x if: x - 59 = 102
Answer: 161
💡 x = 102 + 59 = 161; check: 161 - 59 = 102.
Q10515: What is the missing number: ? + 13 = 159
Answer: 146
💡 Missing number = 159 - 13 = 146; check: 13 + 146 = 159.
Q10516: What is the missing number: ? + 94 = 128
Answer: 34
💡 Missing number = 128 - 94 = 34; check: 94 + 34 = 128.
Q10517: What is the missing number: 2 + ? = 32
Answer: 30
💡 Missing number = 32 - 2 = 30; check: 2 + 30 = 32.
Q10518: What is the value of x if: x - 4 = 266
Answer: 270
💡 x = 266 + 4 = 270; check: 270 - 4 = 266.
Q10519: What is the missing number: ? + 21 = 85
Answer: 64
💡 Missing number = 85 - 21 = 64; check: 21 + 64 = 85.
Q10520: What is the value of x if: x - 129 = 9
Answer: 138
💡 x = 9 + 129 = 138; check: 138 - 129 = 9.
Q10521: What is the missing number: 61 + ? = 132
Answer: 71
💡 Missing number = 132 - 61 = 71; check: 61 + 71 = 132.
Q10522: What is the missing number: 60 + ? = 220
Answer: 160
💡 Missing number = 220 - 60 = 160; check: 60 + 160 = 220.
Q10523: What is the value of x if: x - 125 = 80
Answer: 205
💡 x = 80 + 125 = 205; check: 205 - 125 = 80.
Q10524: What is the value of x if: x - 22 = 51
Answer: 73
💡 x = 51 + 22 = 73; check: 73 - 22 = 51.
Q10525: What is the value of x if: x - 192 = 29
Answer: 221
💡 x = 29 + 192 = 221; check: 221 - 192 = 29.
Q10526: What is the missing number: ? + 54 = 109
Answer: 55
💡 Missing number = 109 - 54 = 55; check: 54 + 55 = 109.
Q10527: What is the missing number: ? + 51 = 180
Answer: 129
💡 Missing number = 180 - 51 = 129; check: 51 + 129 = 180.
Q10528: What is the value of x if: x - 25 = 36
Answer: 61
💡 x = 36 + 25 = 61; check: 61 - 25 = 36.
Q10529: What is the value of x if: x - 50 = 26
Answer: 76
💡 x = 26 + 50 = 76; check: 76 - 50 = 26.
Q10530: What is the missing number: 81 + ? = 202
Answer: 121
💡 Missing number = 202 - 81 = 121; check: 81 + 121 = 202.
Q10531: What is the missing number: ? × 10 = 30
Answer: 3
💡 Missing number = 30 ÷ 10 = 3; check: 3 × 10 = 30.
Q10532: What is the missing number: ? + 8 = 65
Answer: 57
💡 Missing number = 65 - 8 = 57; check: 8 + 57 = 65.
Q10533: What is the value of x if: x - 4 = 139
Answer: 143
💡 x = 139 + 4 = 143; check: 143 - 4 = 139.
Q10534: What is the missing number: ? × 5 = 40
Answer: 8
💡 Missing number = 40 ÷ 5 = 8; check: 8 × 5 = 40.
Q10535: What is the value of x if: x - 93 = 73
Answer: 166
💡 x = 73 + 93 = 166; check: 166 - 93 = 73.
Q10536: What is the missing number: ? + 130 = 240
Answer: 110
💡 Missing number = 240 - 130 = 110; check: 130 + 110 = 240.
Q10537: What is the missing number: ? × 5 = 50
Answer: 10
💡 Missing number = 50 ÷ 5 = 10; check: 10 × 5 = 50.
Q10538: What is the missing number: ? + 31 = 44
Answer: 13
💡 Missing number = 44 - 31 = 13; check: 31 + 13 = 44.
Q10539: What is the missing number: ? + 89 = 180
Answer: 91
💡 Missing number = 180 - 89 = 91; check: 89 + 91 = 180.
Q10540: What is the value of x if: x - 20 = 50
Answer: 70
💡 x = 50 + 20 = 70; check: 70 - 20 = 50.
Q10541: What is the value of x if: x - 12 = 116
Answer: 128
💡 x = 116 + 12 = 128; check: 128 - 12 = 116.
Q10542: What is the value of x if: x - 19 = 42
Answer: 61
💡 x = 42 + 19 = 61; check: 61 - 19 = 42.
Q10543: What is the value of x if: x - 79 = 108
Answer: 187
💡 x = 108 + 79 = 187; check: 187 - 79 = 108.
Q10544: What is the missing number: ? + 120 = 272
Answer: 152
💡 Missing number = 272 - 120 = 152; check: 120 + 152 = 272.
Q10545: What is the missing number: 166 + ? = 278
Answer: 112
💡 Missing number = 278 - 166 = 112; check: 166 + 112 = 278.
Q10546: What is the missing number: 124 + ? = 248
Answer: 124
💡 Missing number = 248 - 124 = 124; check: 124 + 124 = 248.
Q10547: What is the missing number: ? + 3 = 95
Answer: 92
💡 Missing number = 95 - 3 = 92; check: 3 + 92 = 95.
Q10548: What is the missing number: ? + 122 = 282
Answer: 160
💡 Missing number = 282 - 122 = 160; check: 122 + 160 = 282.
Q10549: What is the missing number: 128 + ? = 187
Answer: 59
💡 Missing number = 187 - 128 = 59; check: 128 + 59 = 187.
Q10550: What is the missing number: ? + 173 = 279
Answer: 106
💡 Missing number = 279 - 173 = 106; check: 173 + 106 = 279.
Q10551: What is the missing number: 104 + ? = 246
Answer: 142
💡 Missing number = 246 - 104 = 142; check: 104 + 142 = 246.
Q10552: What is the missing number: ? + 159 = 285
Answer: 126
💡 Missing number = 285 - 159 = 126; check: 159 + 126 = 285.
Q10553: What is the missing number: ? + 67 = 109
Answer: 42
💡 Missing number = 109 - 67 = 42; check: 67 + 42 = 109.
Q10554: What is the missing number: 92 + ? = 142
Answer: 50
💡 Missing number = 142 - 92 = 50; check: 92 + 50 = 142.
Q10555: What is the missing number: ? + 158 = 227
Answer: 69
💡 Missing number = 227 - 158 = 69; check: 158 + 69 = 227.
Q10556: What is the missing number: ? + 92 = 240
Answer: 148
💡 Missing number = 240 - 92 = 148; check: 92 + 148 = 240.
Q10557: What is the missing number: 120 + ? = 171
Answer: 51
💡 Missing number = 171 - 120 = 51; check: 120 + 51 = 171.
Q10558: What is the value of x if: x - 98 = 28
Answer: 126
💡 x = 28 + 98 = 126; check: 126 - 98 = 28.
Q10559: What is the missing number: ? + 75 = 229
Answer: 154
💡 Missing number = 229 - 75 = 154; check: 75 + 154 = 229.
Q10560: What is the missing number: ? + 178 = 327
Answer: 149
💡 Missing number = 327 - 178 = 149; check: 178 + 149 = 327.
Q10561: What is the value of x if: x - 30 = 31
Answer: 61
💡 x = 31 + 30 = 61; check: 61 - 30 = 31.
Q10562: What is the missing number: ? + 160 = 271
Answer: 111
💡 Missing number = 271 - 160 = 111; check: 160 + 111 = 271.
Q10563: What is the missing number: ? + 114 = 192
Answer: 78
💡 Missing number = 192 - 114 = 78; check: 114 + 78 = 192.
Q10564: What is the missing number: ? + 171 = 326
Answer: 155
💡 Missing number = 326 - 171 = 155; check: 171 + 155 = 326.
Q10565: What is the missing number: ? + 171 = 331
Answer: 160
💡 Missing number = 331 - 171 = 160; check: 171 + 160 = 331.
Q10566: What is the missing number: 108 + ? = 225
Answer: 117
💡 Missing number = 225 - 108 = 117; check: 108 + 117 = 225.
Q10567: What is the missing number: 15 + ? = 75
Answer: 60
💡 Missing number = 75 - 15 = 60; check: 15 + 60 = 75.
Q10568: What is the missing number: 167 + ? = 305
Answer: 138
💡 Missing number = 305 - 167 = 138; check: 167 + 138 = 305.
Q10569: What is the missing number: 45 + ? = 178
Answer: 133
💡 Missing number = 178 - 45 = 133; check: 45 + 133 = 178.
Q10570: What is the missing number: ? + 12 = 185
Answer: 173
💡 Missing number = 185 - 12 = 173; check: 12 + 173 = 185.
Q10571: What is the value of x if: x - 80 = 208
Answer: 288
💡 x = 208 + 80 = 288; check: 288 - 80 = 208.
Q10572: What is the value of x if: x - 66 = 67
Answer: 133
💡 x = 67 + 66 = 133; check: 133 - 66 = 67.
Q10573: What is the missing number: ? + 158 = 205
Answer: 47
💡 Missing number = 205 - 158 = 47; check: 158 + 47 = 205.
Q10574: What is the missing number: ? + 51 = 222
Answer: 171
💡 Missing number = 222 - 51 = 171; check: 51 + 171 = 222.
Q10575: What is the missing number: ? + 2 = 108
Answer: 106
💡 Missing number = 108 - 2 = 106; check: 2 + 106 = 108.
Q10576: What is the missing number: 166 + ? = 173
Answer: 7
💡 Missing number = 173 - 166 = 7; check: 166 + 7 = 173.
Q10577: What is the missing number: 7 + ? = 23
Answer: 16
💡 Missing number = 23 - 7 = 16; check: 7 + 16 = 23.
Q10578: What is the value of x if: x - 66 = 35
Answer: 101
💡 x = 35 + 66 = 101; check: 101 - 66 = 35.
Q10579: What is the missing number: 61 + ? = 192
Answer: 131
💡 Missing number = 192 - 61 = 131; check: 61 + 131 = 192.
Q10580: What is the value of x if: x - 121 = 40
Answer: 161
💡 x = 40 + 121 = 161; check: 161 - 121 = 40.
Q10581: What is the missing number: 102 + ? = 231
Answer: 129
💡 Missing number = 231 - 102 = 129; check: 102 + 129 = 231.
Q10582: What is the missing number: ? + 149 = 231
Answer: 82
💡 Missing number = 231 - 149 = 82; check: 149 + 82 = 231.
Q10583: What is the missing number: ? × 10 = 80
Answer: 8
💡 Missing number = 80 ÷ 10 = 8; check: 8 × 10 = 80.
Q10584: What is the value of x if: x - 201 = 30
Answer: 231
💡 x = 30 + 201 = 231; check: 231 - 201 = 30.
Q10585: What is the missing number: ? × 3 = 36
Answer: 12
💡 Missing number = 36 ÷ 3 = 12; check: 12 × 3 = 36.
Q10586: What is the missing number: 75 + ? = 152
Answer: 77
💡 Missing number = 152 - 75 = 77; check: 75 + 77 = 152.
Q10587: What is the value of x if: x - 9 = 61
Answer: 70
💡 x = 61 + 9 = 70; check: 70 - 9 = 61.
Q10588: What is the value of x if: x - 84 = 207
Answer: 291
💡 x = 207 + 84 = 291; check: 291 - 84 = 207.
Q10589: What is the missing number: ? + 129 = 147
Answer: 18
💡 Missing number = 147 - 129 = 18; check: 129 + 18 = 147.
Q10590: What is the missing number: ? × 2 = 12
Answer: 6
💡 Missing number = 12 ÷ 2 = 6; check: 6 × 2 = 12.
Q10591: What is the value of x if: x - 70 = 74
Answer: 144
💡 x = 74 + 70 = 144; check: 144 - 70 = 74.
Q10592: What is the missing number: ? + 52 = 182
Answer: 130
💡 Missing number = 182 - 52 = 130; check: 52 + 130 = 182.
Q10593: What is the missing number: ? + 180 = 200
Answer: 20
💡 Missing number = 200 - 180 = 20; check: 180 + 20 = 200.
Q10594: What is the missing number: ? + 101 = 255
Answer: 154
💡 Missing number = 255 - 101 = 154; check: 101 + 154 = 255.
Q10595: What is the missing number: 150 + ? = 170
Answer: 20
💡 Missing number = 170 - 150 = 20; check: 150 + 20 = 170.
Q10596: What is the missing number: 67 + ? = 227
Answer: 160
💡 Missing number = 227 - 67 = 160; check: 67 + 160 = 227.
Q10597: What is the value of x if: x - 149 = 31
Answer: 180
💡 x = 31 + 149 = 180; check: 180 - 149 = 31.
Q10598: What is the missing number: 5 + ? = 140
Answer: 135
💡 Missing number = 140 - 5 = 135; check: 5 + 135 = 140.
Q10599: What is the missing number: ? × 5 = 15
Answer: 3
💡 Missing number = 15 ÷ 5 = 3; check: 3 × 5 = 15.
Q10600: What is the value of x if: x - 104 = 8
Answer: 112
💡 x = 8 + 104 = 112; check: 112 - 104 = 8.
Q10601: What is the missing number: 47 + ? = 147
Answer: 100
💡 Missing number = 147 - 47 = 100; check: 47 + 100 = 147.
Q10602: What is the missing number: 148 + ? = 323
Answer: 175
💡 Missing number = 323 - 148 = 175; check: 148 + 175 = 323.
Q10603: What is the missing number: ? + 53 = 82
Answer: 29
💡 Missing number = 82 - 53 = 29; check: 53 + 29 = 82.
Q10604: What is the missing number: 70 + ? = 164
Answer: 94
💡 Missing number = 164 - 70 = 94; check: 70 + 94 = 164.
Q10605: What is the value of x if: x - 9 = 25
Answer: 34
💡 x = 25 + 9 = 34; check: 34 - 9 = 25.
Q10606: What is the value of x if: x - 22 = 202
Answer: 224
💡 x = 202 + 22 = 224; check: 224 - 22 = 202.
Q10607: What is the value of x if: x - 118 = 92
Answer: 210
💡 x = 92 + 118 = 210; check: 210 - 118 = 92.
Q10608: What is the missing number: 40 + ? = 185
Answer: 145
💡 Missing number = 185 - 40 = 145; check: 40 + 145 = 185.
Q10609: What is the missing number: ? × 5 = 55
Answer: 11
💡 Missing number = 55 ÷ 5 = 11; check: 11 × 5 = 55.
Q10610: What is the missing number: ? + 25 = 159
Answer: 134
💡 Missing number = 159 - 25 = 134; check: 25 + 134 = 159.
Q10611: What is the missing number: 6 + ? = 105
Answer: 99
💡 Missing number = 105 - 6 = 99; check: 6 + 99 = 105.
Q10612: What is the missing number: 12 + ? = 178
Answer: 166
💡 Missing number = 178 - 12 = 166; check: 12 + 166 = 178.
Q10613: What is the missing number: ? + 177 = 246
Answer: 69
💡 Missing number = 246 - 177 = 69; check: 177 + 69 = 246.
Q10614: What is the missing number: 33 + ? = 140
Answer: 107
💡 Missing number = 140 - 33 = 107; check: 33 + 107 = 140.
Q10615: What is the missing number: 11 + ? = 63
Answer: 52
💡 Missing number = 63 - 11 = 52; check: 11 + 52 = 63.
Q10616: What is the missing number: 17 + ? = 75
Answer: 58
💡 Missing number = 75 - 17 = 58; check: 17 + 58 = 75.
Q10617: What is the value of x if: x - 102 = 96
Answer: 198
💡 x = 96 + 102 = 198; check: 198 - 102 = 96.
Q10618: What is the missing number: 31 + ? = 190
Answer: 159
💡 Missing number = 190 - 31 = 159; check: 31 + 159 = 190.
Q10619: What is the missing number: 136 + ? = 149
Answer: 13
💡 Missing number = 149 - 136 = 13; check: 136 + 13 = 149.
Q10620: What is the missing number: ? + 3 = 79
Answer: 76
💡 Missing number = 79 - 3 = 76; check: 3 + 76 = 79.
Q10621: What is the missing number: ? + 9 = 45
Answer: 36
💡 Missing number = 45 - 9 = 36; check: 9 + 36 = 45.
Q10622: What is the missing number: 128 + ? = 169
Answer: 41
💡 Missing number = 169 - 128 = 41; check: 128 + 41 = 169.
Q10623: What is the value of x if: x - 23 = 2
Answer: 25
💡 x = 2 + 23 = 25; check: 25 - 23 = 2.
Q10624: What is the missing number: 24 + ? = 183
Answer: 159
💡 Missing number = 183 - 24 = 159; check: 24 + 159 = 183.
Q10625: What is the value of x if: x - 8 = 44
Answer: 52
💡 x = 44 + 8 = 52; check: 52 - 8 = 44.
Q10626: What is the missing number: ? + 158 = 207
Answer: 49
💡 Missing number = 207 - 158 = 49; check: 158 + 49 = 207.
Q10627: What is the missing number: 114 + ? = 199
Answer: 85
💡 Missing number = 199 - 114 = 85; check: 114 + 85 = 199.
Q10628: What is the missing number: ? × 11 = 55
Answer: 5
💡 Missing number = 55 ÷ 11 = 5; check: 5 × 11 = 55.
Q10629: What is the value of x if: x - 127 = 17
Answer: 144
💡 x = 17 + 127 = 144; check: 144 - 127 = 17.
Q10630: What is the missing number: ? + 13 = 94
Answer: 81
💡 Missing number = 94 - 13 = 81; check: 13 + 81 = 94.
Q10631: What is the missing number: ? × 9 = 81
Answer: 9
💡 Missing number = 81 ÷ 9 = 9; check: 9 × 9 = 81.
Q10632: What is the missing number: ? + 144 = 200
Answer: 56
💡 Missing number = 200 - 144 = 56; check: 144 + 56 = 200.
Q10633: What is the missing number: ? + 2 = 149
Answer: 147
💡 Missing number = 149 - 2 = 147; check: 2 + 147 = 149.
Q10634: What is the missing number: 82 + ? = 230
Answer: 148
💡 Missing number = 230 - 82 = 148; check: 82 + 148 = 230.
Q10635: What is the missing number: 71 + ? = 181
Answer: 110
💡 Missing number = 181 - 71 = 110; check: 71 + 110 = 181.
Q10636: What is the missing number: 136 + ? = 144
Answer: 8
💡 Missing number = 144 - 136 = 8; check: 136 + 8 = 144.
Q10637: What is the missing number: 81 + ? = 114
Answer: 33
💡 Missing number = 114 - 81 = 33; check: 81 + 33 = 114.
Q10638: What is the missing number: 167 + ? = 260
Answer: 93
💡 Missing number = 260 - 167 = 93; check: 167 + 93 = 260.
Q10639: What is the value of x if: x - 56 = 82
Answer: 138
💡 x = 82 + 56 = 138; check: 138 - 56 = 82.
Q10640: What is the missing number: 152 + ? = 177
Answer: 25
💡 Missing number = 177 - 152 = 25; check: 152 + 25 = 177.
Q10641: What is the missing number: ? × 2 = 22
Answer: 11
💡 Missing number = 22 ÷ 2 = 11; check: 11 × 2 = 22.
Q10642: What is the missing number: ? + 32 = 113
Answer: 81
💡 Missing number = 113 - 32 = 81; check: 32 + 81 = 113.
Q10643: What is the missing number: 78 + ? = 201
Answer: 123
💡 Missing number = 201 - 78 = 123; check: 78 + 123 = 201.
Q10644: What is the missing number: ? + 90 = 234
Answer: 144
💡 Missing number = 234 - 90 = 144; check: 90 + 144 = 234.
Q10645: What is the missing number: ? + 178 = 342
Answer: 164
💡 Missing number = 342 - 178 = 164; check: 178 + 164 = 342.
Q10646: What is the missing number: ? + 146 = 168
Answer: 22
💡 Missing number = 168 - 146 = 22; check: 146 + 22 = 168.
Q10647: What is the missing number: ? × 11 = 22
Answer: 2
💡 Missing number = 22 ÷ 11 = 2; check: 2 × 11 = 22.
Q10648: What is the missing number: ? + 76 = 123
Answer: 47
💡 Missing number = 123 - 76 = 47; check: 76 + 47 = 123.
Q10649: What is the missing number: ? + 121 = 251
Answer: 130
💡 Missing number = 251 - 121 = 130; check: 121 + 130 = 251.
Q10650: What is the missing number: ? + 92 = 169
Answer: 77
💡 Missing number = 169 - 92 = 77; check: 92 + 77 = 169.
Q10651: What is the value of x if: x - 19 = 58
Answer: 77
💡 x = 58 + 19 = 77; check: 77 - 19 = 58.
Q10652: What is the missing number: 151 + ? = 304
Answer: 153
💡 Missing number = 304 - 151 = 153; check: 151 + 153 = 304.
Q10653: What is the missing number: ? + 106 = 227
Answer: 121
💡 Missing number = 227 - 106 = 121; check: 106 + 121 = 227.
Q10654: What is the value of x if: x - 40 = 17
Answer: 57
💡 x = 17 + 40 = 57; check: 57 - 40 = 17.
Q10655: What is the missing number: 55 + ? = 121
Answer: 66
💡 Missing number = 121 - 55 = 66; check: 55 + 66 = 121.
Q10656: What is the missing number: ? × 4 = 20
Answer: 5
💡 Missing number = 20 ÷ 4 = 5; check: 5 × 4 = 20.
Q10657: What is the value of x if: x - 44 = 194
Answer: 238
💡 x = 194 + 44 = 238; check: 238 - 44 = 194.
Q10658: What is the value of x if: x - 39 = 26
Answer: 65
💡 x = 26 + 39 = 65; check: 65 - 39 = 26.
Q10659: What is the missing number: 100 + ? = 252
Answer: 152
💡 Missing number = 252 - 100 = 152; check: 100 + 152 = 252.
Q10660: What is the value of x if: x - 3 = 55
Answer: 58
💡 x = 55 + 3 = 58; check: 58 - 3 = 55.
Q10661: What is the missing number: ? + 84 = 216
Answer: 132
💡 Missing number = 216 - 84 = 132; check: 84 + 132 = 216.
Q10662: What is the value of x if: x - 10 = 178
Answer: 188
💡 x = 178 + 10 = 188; check: 188 - 10 = 178.
Q10663: What is the missing number: 29 + ? = 143
Answer: 114
💡 Missing number = 143 - 29 = 114; check: 29 + 114 = 143.
Q10664: What is the missing number: 131 + ? = 306
Answer: 175
💡 Missing number = 306 - 131 = 175; check: 131 + 175 = 306.
Q10665: What is the missing number: 88 + ? = 141
Answer: 53
💡 Missing number = 141 - 88 = 53; check: 88 + 53 = 141.
Q10666: What is the missing number: 101 + ? = 169
Answer: 68
💡 Missing number = 169 - 101 = 68; check: 101 + 68 = 169.
Q10667: What is the missing number: ? + 146 = 256
Answer: 110
💡 Missing number = 256 - 146 = 110; check: 146 + 110 = 256.
Q10668: What is the missing number: 74 + ? = 222
Answer: 148
💡 Missing number = 222 - 74 = 148; check: 74 + 148 = 222.
Q10669: What is the value of x if: x - 161 = 93
Answer: 254
💡 x = 93 + 161 = 254; check: 254 - 161 = 93.
Q10670: What is the missing number: ? + 68 = 95
Answer: 27
💡 Missing number = 95 - 68 = 27; check: 68 + 27 = 95.
Q10671: What is the missing number: 11 + ? = 15
Answer: 4
💡 Missing number = 15 - 11 = 4; check: 11 + 4 = 15.
Q10672: What is the value of x if: x - 18 = 27
Answer: 45
💡 x = 27 + 18 = 45; check: 45 - 18 = 27.
Q10673: What is the missing number: 48 + ? = 214
Answer: 166
💡 Missing number = 214 - 48 = 166; check: 48 + 166 = 214.
Q10674: What is the missing number: ? + 107 = 112
Answer: 5
💡 Missing number = 112 - 107 = 5; check: 107 + 5 = 112.
Q10675: What is the value of x if: x - 127 = 134
Answer: 261
💡 x = 134 + 127 = 261; check: 261 - 127 = 134.
Q10676: What is the missing number: 121 + ? = 221
Answer: 100
💡 Missing number = 221 - 121 = 100; check: 121 + 100 = 221.
Q10677: What is the missing number: 53 + ? = 85
Answer: 32
💡 Missing number = 85 - 53 = 32; check: 53 + 32 = 85.
Q10678: What is the missing number: ? × 9 = 72
Answer: 8
💡 Missing number = 72 ÷ 9 = 8; check: 8 × 9 = 72.
Q10679: What is the missing number: 166 + ? = 337
Answer: 171
💡 Missing number = 337 - 166 = 171; check: 166 + 171 = 337.
Q10680: What is the value of x if: x - 39 = 218
Answer: 257
💡 x = 218 + 39 = 257; check: 257 - 39 = 218.
Q10681: What is the missing number: ? + 176 = 226
Answer: 50
💡 Missing number = 226 - 176 = 50; check: 176 + 50 = 226.
Q10682: What is the missing number: ? × 11 = 132
Answer: 12
💡 Missing number = 132 ÷ 11 = 12; check: 12 × 11 = 132.
Q10683: What is the missing number: 52 + ? = 212
Answer: 160
💡 Missing number = 212 - 52 = 160; check: 52 + 160 = 212.
Q10684: What is the missing number: ? + 107 = 172
Answer: 65
💡 Missing number = 172 - 107 = 65; check: 107 + 65 = 172.
Q10685: What is the missing number: 2 + ? = 16
Answer: 14
💡 Missing number = 16 - 2 = 14; check: 2 + 14 = 16.
Q10686: What is the value of x if: x - 118 = 26
Answer: 144
💡 x = 26 + 118 = 144; check: 144 - 118 = 26.
Q10687: What is the missing number: ? + 2 = 155
Answer: 153
💡 Missing number = 155 - 2 = 153; check: 2 + 153 = 155.
Q10688: What is the missing number: ? + 71 = 220
Answer: 149
💡 Missing number = 220 - 71 = 149; check: 71 + 149 = 220.
Q10689: What is the missing number: 128 + ? = 231
Answer: 103
💡 Missing number = 231 - 128 = 103; check: 128 + 103 = 231.
Q10690: What is the value of x if: x - 8 = 5
Answer: 13
💡 x = 5 + 8 = 13; check: 13 - 8 = 5.
Q10691: What is the value of x if: x - 169 = 44
Answer: 213
💡 x = 44 + 169 = 213; check: 213 - 169 = 44.
Q10692: What is the missing number: 112 + ? = 153
Answer: 41
💡 Missing number = 153 - 112 = 41; check: 112 + 41 = 153.
Q10693: What is the value of x if: x - 176 = 85
Answer: 261
💡 x = 85 + 176 = 261; check: 261 - 176 = 85.
Q10694: What is the missing number: ? + 3 = 68
Answer: 65
💡 Missing number = 68 - 3 = 65; check: 3 + 65 = 68.
Q10695: What is the missing number: 88 + ? = 153
Answer: 65
💡 Missing number = 153 - 88 = 65; check: 88 + 65 = 153.
Q10696: What is the missing number: 82 + ? = 94
Answer: 12
💡 Missing number = 94 - 82 = 12; check: 82 + 12 = 94.
Q10697: What is the missing number: ? + 14 = 38
Answer: 24
💡 Missing number = 38 - 14 = 24; check: 14 + 24 = 38.
Q10698: What is the missing number: 96 + ? = 166
Answer: 70
💡 Missing number = 166 - 96 = 70; check: 96 + 70 = 166.
Q10699: What is the missing number: ? + 28 = 36
Answer: 8
💡 Missing number = 36 - 28 = 8; check: 28 + 8 = 36.
Q10700: What is the missing number: 165 + ? = 281
Answer: 116
💡 Missing number = 281 - 165 = 116; check: 165 + 116 = 281.
Q10701: What is the missing number: 36 + ? = 180
Answer: 144
💡 Missing number = 180 - 36 = 144; check: 36 + 144 = 180.
Q10702: What is the value of x if: x - 12 = 13
Answer: 25
💡 x = 13 + 12 = 25; check: 25 - 12 = 13.
Q10703: What is the value of x if: x - 81 = 168
Answer: 249
💡 x = 168 + 81 = 249; check: 249 - 81 = 168.
Q10704: What is the missing number: 128 + ? = 132
Answer: 4
💡 Missing number = 132 - 128 = 4; check: 128 + 4 = 132.
Q10705: What is the missing number: ? + 10 = 159
Answer: 149
💡 Missing number = 159 - 10 = 149; check: 10 + 149 = 159.
Q10706: What is the missing number: 152 + ? = 234
Answer: 82
💡 Missing number = 234 - 152 = 82; check: 152 + 82 = 234.
Q10707: What is the missing number: ? + 82 = 236
Answer: 154
💡 Missing number = 236 - 82 = 154; check: 82 + 154 = 236.
Q10708: What is the missing number: 69 + ? = 197
Answer: 128
💡 Missing number = 197 - 69 = 128; check: 69 + 128 = 197.
Q10709: What is the missing number: ? + 106 = 155
Answer: 49
💡 Missing number = 155 - 106 = 49; check: 106 + 49 = 155.
Q10710: What is the missing number: ? × 12 = 120
Answer: 10
💡 Missing number = 120 ÷ 12 = 10; check: 10 × 12 = 120.
Q10711: What is the missing number: 60 + ? = 209
Answer: 149
💡 Missing number = 209 - 60 = 149; check: 60 + 149 = 209.
Q10712: What is the value of x if: x - 24 = 13
Answer: 37
💡 x = 13 + 24 = 37; check: 37 - 24 = 13.
Q10713: What is the missing number: 33 + ? = 37
Answer: 4
💡 Missing number = 37 - 33 = 4; check: 33 + 4 = 37.
Q10714: What is the missing number: 12 + ? = 62
Answer: 50
💡 Missing number = 62 - 12 = 50; check: 12 + 50 = 62.
Q10715: What is the missing number: 76 + ? = 231
Answer: 155
💡 Missing number = 231 - 76 = 155; check: 76 + 155 = 231.
Q10716: What is the value of x if: x - 52 = 157
Answer: 209
💡 x = 157 + 52 = 209; check: 209 - 52 = 157.
Q10717: What is the value of x if: x - 89 = 54
Answer: 143
💡 x = 54 + 89 = 143; check: 143 - 89 = 54.
Q10718: What is the missing number: 15 + ? = 40
Answer: 25
💡 Missing number = 40 - 15 = 25; check: 15 + 25 = 40.
Q10719: What is the value of x if: x - 88 = 11
Answer: 99
💡 x = 11 + 88 = 99; check: 99 - 88 = 11.
Q10720: What is the value of x if: x - 2 = 92
Answer: 94
💡 x = 92 + 2 = 94; check: 94 - 2 = 92.
Q10721: What is the missing number: ? + 47 = 133
Answer: 86
💡 Missing number = 133 - 47 = 86; check: 47 + 86 = 133.
Q10722: What is the missing number: ? + 127 = 148
Answer: 21
💡 Missing number = 148 - 127 = 21; check: 127 + 21 = 148.
Q10723: What is the missing number: 175 + ? = 187
Answer: 12
💡 Missing number = 187 - 175 = 12; check: 175 + 12 = 187.
Q10724: What is the missing number: ? × 12 = 144
Answer: 12
💡 Missing number = 144 ÷ 12 = 12; check: 12 × 12 = 144.
Q10725: What is the value of x if: x - 80 = 214
Answer: 294
💡 x = 214 + 80 = 294; check: 294 - 80 = 214.
Q10726: What is the value of x if: x - 113 = 12
Answer: 125
💡 x = 12 + 113 = 125; check: 125 - 113 = 12.
Q10727: What is the value of x if: x - 59 = 94
Answer: 153
💡 x = 94 + 59 = 153; check: 153 - 59 = 94.
Q10728: What is the value of x if: x - 107 = 15
Answer: 122
💡 x = 15 + 107 = 122; check: 122 - 107 = 15.
Q10729: What is the missing number: ? × 2 = 16
Answer: 8
💡 Missing number = 16 ÷ 2 = 8; check: 8 × 2 = 16.
Q10730: What is the value of x if: x - 18 = 12
Answer: 30
💡 x = 12 + 18 = 30; check: 30 - 18 = 12.
Q10731: What is the missing number: 135 + ? = 261
Answer: 126
💡 Missing number = 261 - 135 = 126; check: 135 + 126 = 261.
Q10732: What is the missing number: ? + 139 = 178
Answer: 39
💡 Missing number = 178 - 139 = 39; check: 139 + 39 = 178.
Q10733: What is the value of x if: x - 100 = 142
Answer: 242
💡 x = 142 + 100 = 242; check: 242 - 100 = 142.
Q10734: What is the missing number: 88 + ? = 176
Answer: 88
💡 Missing number = 176 - 88 = 88; check: 88 + 88 = 176.
Q10735: What is the missing number: ? + 141 = 313
Answer: 172
💡 Missing number = 313 - 141 = 172; check: 141 + 172 = 313.
Q10736: What is the value of x if: x - 251 = 36
Answer: 287
💡 x = 36 + 251 = 287; check: 287 - 251 = 36.
Q10737: What is the value of x if: x - 178 = 38
Answer: 216
💡 x = 38 + 178 = 216; check: 216 - 178 = 38.
Q10738: What is the missing number: ? × 4 = 8
Answer: 2
💡 Missing number = 8 ÷ 4 = 2; check: 2 × 4 = 8.
Q10739: What is the value of x if: x - 117 = 9
Answer: 126
💡 x = 9 + 117 = 126; check: 126 - 117 = 9.
Q10740: What is the value of x if: x - 69 = 172
Answer: 241
💡 x = 172 + 69 = 241; check: 241 - 69 = 172.
Q10741: What is the value of x if: x - 5 = 146
Answer: 151
💡 x = 146 + 5 = 151; check: 151 - 5 = 146.
Q10742: What is the missing number: ? + 44 = 179
Answer: 135
💡 Missing number = 179 - 44 = 135; check: 44 + 135 = 179.
Q10743: What is the value of x if: x - 6 = 23
Answer: 29
💡 x = 23 + 6 = 29; check: 29 - 6 = 23.
Q10744: What is the value of x if: x - 69 = 171
Answer: 240
💡 x = 171 + 69 = 240; check: 240 - 69 = 171.
Q10745: What is the missing number: 20 + ? = 119
Answer: 99
💡 Missing number = 119 - 20 = 99; check: 20 + 99 = 119.
Q10746: What is the missing number: ? + 20 = 149
Answer: 129
💡 Missing number = 149 - 20 = 129; check: 20 + 129 = 149.
Q10747: What is the missing number: 125 + ? = 265
Answer: 140
💡 Missing number = 265 - 125 = 140; check: 125 + 140 = 265.
Q10748: What is the missing number: 110 + ? = 176
Answer: 66
💡 Missing number = 176 - 110 = 66; check: 110 + 66 = 176.
Q10749: What is the value of x if: x - 7 = 99
Answer: 106
💡 x = 99 + 7 = 106; check: 106 - 7 = 99.
Q10750: What is the missing number: 142 + ? = 202
Answer: 60
💡 Missing number = 202 - 142 = 60; check: 142 + 60 = 202.
Q10751: What is the missing number: 12 + ? = 181
Answer: 169
💡 Missing number = 181 - 12 = 169; check: 12 + 169 = 181.
Q10752: What is the missing number: 45 + ? = 207
Answer: 162
💡 Missing number = 207 - 45 = 162; check: 45 + 162 = 207.
Q10753: What is the value of x if: x - 8 = 97
Answer: 105
💡 x = 97 + 8 = 105; check: 105 - 8 = 97.
Q10754: What is the missing number: 43 + ? = 105
Answer: 62
💡 Missing number = 105 - 43 = 62; check: 43 + 62 = 105.
Q10755: What is the missing number: ? + 26 = 89
Answer: 63
💡 Missing number = 89 - 26 = 63; check: 26 + 63 = 89.
Q10756: What is the value of x if: x - 36 = 73
Answer: 109
💡 x = 73 + 36 = 109; check: 109 - 36 = 73.
Q10757: What is the value of x if: x - 45 = 101
Answer: 146
💡 x = 101 + 45 = 146; check: 146 - 45 = 101.
Q10758: What is the value of x if: x - 146 = 42
Answer: 188
💡 x = 42 + 146 = 188; check: 188 - 146 = 42.
Q10759: What is the value of x if: x - 105 = 44
Answer: 149
💡 x = 44 + 105 = 149; check: 149 - 105 = 44.
Q10760: What is the missing number: 74 + ? = 119
Answer: 45
💡 Missing number = 119 - 74 = 45; check: 74 + 45 = 119.
Q10761: What is the missing number: ? + 155 = 256
Answer: 101
💡 Missing number = 256 - 155 = 101; check: 155 + 101 = 256.
Q10762: What is the value of x if: x - 56 = 113
Answer: 169
💡 x = 113 + 56 = 169; check: 169 - 56 = 113.
Q10763: What is the missing number: 89 + ? = 166
Answer: 77
💡 Missing number = 166 - 89 = 77; check: 89 + 77 = 166.
Q10764: What is the missing number: ? + 18 = 157
Answer: 139
💡 Missing number = 157 - 18 = 139; check: 18 + 139 = 157.
Q10765: What is the missing number: ? × 5 = 30
Answer: 6
💡 Missing number = 30 ÷ 5 = 6; check: 6 × 5 = 30.
Q10766: What is the value of x if: x - 9 = 9
Answer: 18
💡 x = 9 + 9 = 18; check: 18 - 9 = 9.
Q10767: What is the missing number: 19 + ? = 27
Answer: 8
💡 Missing number = 27 - 19 = 8; check: 19 + 8 = 27.
Q10768: What is the value of x if: x - 38 = 204
Answer: 242
💡 x = 204 + 38 = 242; check: 242 - 38 = 204.
Q10769: What is the missing number: 7 + ? = 106
Answer: 99
💡 Missing number = 106 - 7 = 99; check: 7 + 99 = 106.
Q10770: What is the value of x if: x - 126 = 159
Answer: 285
💡 x = 159 + 126 = 285; check: 285 - 126 = 159.
Q10771: What is the missing number: 75 + ? = 125
Answer: 50
💡 Missing number = 125 - 75 = 50; check: 75 + 50 = 125.
Q10772: What is the missing number: ? + 17 = 163
Answer: 146
💡 Missing number = 163 - 17 = 146; check: 17 + 146 = 163.
Q10773: What is the missing number: ? + 61 = 68
Answer: 7
💡 Missing number = 68 - 61 = 7; check: 61 + 7 = 68.
Q10774: What is the missing number: 92 + ? = 185
Answer: 93
💡 Missing number = 185 - 92 = 93; check: 92 + 93 = 185.
Q10775: What is the value of x if: x - 130 = 5
Answer: 135
💡 x = 5 + 130 = 135; check: 135 - 130 = 5.
Q10776: What is the missing number: 113 + ? = 229
Answer: 116
💡 Missing number = 229 - 113 = 116; check: 113 + 116 = 229.
Q10777: What is the value of x if: x - 74 = 49
Answer: 123
💡 x = 49 + 74 = 123; check: 123 - 74 = 49.
Q10778: What is the value of x if: x - 32 = 45
Answer: 77
💡 x = 45 + 32 = 77; check: 77 - 32 = 45.
Q10779: What is the missing number: ? + 170 = 280
Answer: 110
💡 Missing number = 280 - 170 = 110; check: 170 + 110 = 280.
Q10780: What is the missing number: ? + 175 = 346
Answer: 171
💡 Missing number = 346 - 175 = 171; check: 175 + 171 = 346.
Q10781: What is the missing number: ? + 136 = 219
Answer: 83
💡 Missing number = 219 - 136 = 83; check: 136 + 83 = 219.
Q10782: What is the missing number: 6 + ? = 131
Answer: 125
💡 Missing number = 131 - 6 = 125; check: 6 + 125 = 131.
Q10783: What is the value of x if: x - 177 = 74
Answer: 251
💡 x = 74 + 177 = 251; check: 251 - 177 = 74.
Q10784: What is the missing number: 173 + ? = 219
Answer: 46
💡 Missing number = 219 - 173 = 46; check: 173 + 46 = 219.
Q10785: What is the value of x if: x - 177 = 13
Answer: 190
💡 x = 13 + 177 = 190; check: 190 - 177 = 13.
Q10786: What is the missing number: 55 + ? = 87
Answer: 32
💡 Missing number = 87 - 55 = 32; check: 55 + 32 = 87.
Q10787: What is the missing number: 63 + ? = 131
Answer: 68
💡 Missing number = 131 - 63 = 68; check: 63 + 68 = 131.
Q10788: What is the missing number: ? × 3 = 33
Answer: 11
💡 Missing number = 33 ÷ 3 = 11; check: 11 × 3 = 33.
Q10789: What is the missing number: ? + 128 = 143
Answer: 15
💡 Missing number = 143 - 128 = 15; check: 128 + 15 = 143.
Q10790: What is the value of x if: x - 94 = 7
Answer: 101
💡 x = 7 + 94 = 101; check: 101 - 94 = 7.
Q10791: What is the missing number: ? + 114 = 121
Answer: 7
💡 Missing number = 121 - 114 = 7; check: 114 + 7 = 121.
Q10792: What is the missing number: 12 + ? = 130
Answer: 118
💡 Missing number = 130 - 12 = 118; check: 12 + 118 = 130.
Q10793: What is the value of x if: x - 9 = 2
Answer: 11
💡 x = 2 + 9 = 11; check: 11 - 9 = 2.
Q10794: What is the missing number: ? + 150 = 185
Answer: 35
💡 Missing number = 185 - 150 = 35; check: 150 + 35 = 185.
Q10795: What is the value of x if: x - 6 = 133
Answer: 139
💡 x = 133 + 6 = 139; check: 139 - 6 = 133.
Q10796: What is the missing number: 99 + ? = 111
Answer: 12
💡 Missing number = 111 - 99 = 12; check: 99 + 12 = 111.
Q10797: What is the value of x if: x - 3 = 251
Answer: 254
💡 x = 251 + 3 = 254; check: 254 - 3 = 251.
Q10798: What is the value of x if: x - 212 = 13
Answer: 225
💡 x = 13 + 212 = 225; check: 225 - 212 = 13.
Q10799: What is the value of x if: x - 134 = 158
Answer: 292
💡 x = 158 + 134 = 292; check: 292 - 134 = 158.
Q10800: What is the missing number: ? + 77 = 182
Answer: 105
💡 Missing number = 182 - 77 = 105; check: 77 + 105 = 182.
Q10801: What is the missing number: ? × 2 = 20
Answer: 10
💡 Missing number = 20 ÷ 2 = 10; check: 10 × 2 = 20.
Q10802: What is the missing number: ? × 10 = 110
Answer: 11
💡 Missing number = 110 ÷ 10 = 11; check: 11 × 10 = 110.
Q10803: What is the missing number: ? + 12 = 167
Answer: 155
💡 Missing number = 167 - 12 = 155; check: 12 + 155 = 167.
Q10804: What is the value of x if: x - 22 = 150
Answer: 172
💡 x = 150 + 22 = 172; check: 172 - 22 = 150.
Q10805: What is the value of x if: x - 46 = 124
Answer: 170
💡 x = 124 + 46 = 170; check: 170 - 46 = 124.
Q10806: What is the value of x if: x - 20 = 18
Answer: 38
💡 x = 18 + 20 = 38; check: 38 - 20 = 18.
Q10807: What is the value of x if: x - 51 = 21
Answer: 72
💡 x = 21 + 51 = 72; check: 72 - 51 = 21.
Q10808: What is the value of x if: x - 230 = 64
Answer: 294
💡 x = 64 + 230 = 294; check: 294 - 230 = 64.
Q10809: What is the missing number: ? + 151 = 314
Answer: 163
💡 Missing number = 314 - 151 = 163; check: 151 + 163 = 314.
Q10810: What is the value of x if: x - 53 = 201
Answer: 254
💡 x = 201 + 53 = 254; check: 254 - 53 = 201.
Q10811: What is the missing number: 125 + ? = 196
Answer: 71
💡 Missing number = 196 - 125 = 71; check: 125 + 71 = 196.
Q10812: What is the missing number: 89 + ? = 223
Answer: 134
💡 Missing number = 223 - 89 = 134; check: 89 + 134 = 223.
Q10813: What is the value of x if: x - 6 = 59
Answer: 65
💡 x = 59 + 6 = 65; check: 65 - 6 = 59.
Q10814: What is the missing number: ? + 150 = 157
Answer: 7
💡 Missing number = 157 - 150 = 7; check: 150 + 7 = 157.
Q10815: What is the missing number: ? + 82 = 92
Answer: 10
💡 Missing number = 92 - 82 = 10; check: 82 + 10 = 92.
Q10816: What is the missing number: 174 + ? = 213
Answer: 39
💡 Missing number = 213 - 174 = 39; check: 174 + 39 = 213.
Q10817: What is the missing number: 117 + ? = 158
Answer: 41
💡 Missing number = 158 - 117 = 41; check: 117 + 41 = 158.
Q10818: What is the value of x if: x - 2 = 51
Answer: 53
💡 x = 51 + 2 = 53; check: 53 - 2 = 51.
Q10819: What is the value of x if: x - 67 = 219
Answer: 286
💡 x = 219 + 67 = 286; check: 286 - 67 = 219.
Q10820: What is the value of x if: x - 66 = 184
Answer: 250
💡 x = 184 + 66 = 250; check: 250 - 66 = 184.
Q10821: What is the value of x if: x - 9 = 102
Answer: 111
💡 x = 102 + 9 = 111; check: 111 - 9 = 102.
Q10822: What is the value of x if: x - 71 = 193
Answer: 264
💡 x = 193 + 71 = 264; check: 264 - 71 = 193.
Q10823: What is the missing number: 121 + ? = 160
Answer: 39
💡 Missing number = 160 - 121 = 39; check: 121 + 39 = 160.
Q10824: What is the missing number: ? + 61 = 141
Answer: 80
💡 Missing number = 141 - 61 = 80; check: 61 + 80 = 141.
Q10825: What is the missing number: 171 + ? = 215
Answer: 44
💡 Missing number = 215 - 171 = 44; check: 171 + 44 = 215.
Q10826: What is the value of x if: x - 25 = 64
Answer: 89
💡 x = 64 + 25 = 89; check: 89 - 25 = 64.
Q10827: What is the missing number: 111 + ? = 282
Answer: 171
💡 Missing number = 282 - 111 = 171; check: 111 + 171 = 282.
Q10828: What is the missing number: ? × 4 = 28
Answer: 7
💡 Missing number = 28 ÷ 4 = 7; check: 7 × 4 = 28.
Q10829: What is the value of x if: x - 44 = 8
Answer: 52
💡 x = 8 + 44 = 52; check: 52 - 44 = 8.
Q10830: What is the value of x if: x - 83 = 32
Answer: 115
💡 x = 32 + 83 = 115; check: 115 - 83 = 32.
Q10831: What is the value of x if: x - 20 = 2
Answer: 22
💡 x = 2 + 20 = 22; check: 22 - 20 = 2.
Q10832: What is the missing number: ? + 49 = 222
Answer: 173
💡 Missing number = 222 - 49 = 173; check: 49 + 173 = 222.
Q10833: What is the value of x if: x - 13 = 4
Answer: 17
💡 x = 4 + 13 = 17; check: 17 - 13 = 4.
Q10834: What is the missing number: 175 + ? = 189
Answer: 14
💡 Missing number = 189 - 175 = 14; check: 175 + 14 = 189.
Q10835: What is the missing number: ? + 135 = 219
Answer: 84
💡 Missing number = 219 - 135 = 84; check: 135 + 84 = 219.
Q10836: What is the missing number: ? + 161 = 299
Answer: 138
💡 Missing number = 299 - 161 = 138; check: 161 + 138 = 299.
Q10837: What is the missing number: 54 + ? = 66
Answer: 12
💡 Missing number = 66 - 54 = 12; check: 54 + 12 = 66.
Q10838: What is the missing number: ? + 111 = 177
Answer: 66
💡 Missing number = 177 - 111 = 66; check: 111 + 66 = 177.
Q10839: What is the missing number: ? + 12 = 14
Answer: 2
💡 Missing number = 14 - 12 = 2; check: 12 + 2 = 14.
Q10840: What is the value of x if: x - 11 = 182
Answer: 193
💡 x = 182 + 11 = 193; check: 193 - 11 = 182.
Q10841: What is the missing number: ? + 137 = 255
Answer: 118
💡 Missing number = 255 - 137 = 118; check: 137 + 118 = 255.
Q10842: What is the missing number: ? + 2 = 88
Answer: 86
💡 Missing number = 88 - 2 = 86; check: 2 + 86 = 88.
Q10843: What is the value of x if: x - 27 = 13
Answer: 40
💡 x = 13 + 27 = 40; check: 40 - 27 = 13.
Q10844: What is the value of x if: x - 97 = 192
Answer: 289
💡 x = 192 + 97 = 289; check: 289 - 97 = 192.
Q10845: What is the missing number: 170 + ? = 337
Answer: 167
💡 Missing number = 337 - 170 = 167; check: 170 + 167 = 337.
Q10846: What is the value of x if: x - 16 = 27
Answer: 43
💡 x = 27 + 16 = 43; check: 43 - 16 = 27.
Q10847: What is the value of x if: x - 110 = 101
Answer: 211
💡 x = 101 + 110 = 211; check: 211 - 110 = 101.
Q10848: What is the missing number: ? + 155 = 273
Answer: 118
💡 Missing number = 273 - 155 = 118; check: 155 + 118 = 273.
Q10849: What is the missing number: ? + 126 = 167
Answer: 41
💡 Missing number = 167 - 126 = 41; check: 126 + 41 = 167.
Q10850: What is the value of x if: x - 72 = 198
Answer: 270
💡 x = 198 + 72 = 270; check: 270 - 72 = 198.
Q10851: What is the value of x if: x - 43 = 20
Answer: 63
💡 x = 20 + 43 = 63; check: 63 - 43 = 20.
Q10852: What is the value of x if: x - 99 = 155
Answer: 254
💡 x = 155 + 99 = 254; check: 254 - 99 = 155.
Q10853: What is the missing number: ? + 140 = 274
Answer: 134
💡 Missing number = 274 - 140 = 134; check: 140 + 134 = 274.
Q10854: What is the missing number: ? × 9 = 18
Answer: 2
💡 Missing number = 18 ÷ 9 = 2; check: 2 × 9 = 18.
Q10855: What is the value of x if: x - 92 = 47
Answer: 139
💡 x = 47 + 92 = 139; check: 139 - 92 = 47.
Q10856: What is the missing number: 147 + ? = 272
Answer: 125
💡 Missing number = 272 - 147 = 125; check: 147 + 125 = 272.
Q10857: What is the missing number: 16 + ? = 28
Answer: 12
💡 Missing number = 28 - 16 = 12; check: 16 + 12 = 28.
Q10858: What is the missing number: 27 + ? = 60
Answer: 33
💡 Missing number = 60 - 27 = 33; check: 27 + 33 = 60.
Q10859: What is the value of x if: x - 89 = 60
Answer: 149
💡 x = 60 + 89 = 149; check: 149 - 89 = 60.
Q10860: What is the missing number: 109 + ? = 187
Answer: 78
💡 Missing number = 187 - 109 = 78; check: 109 + 78 = 187.
Q10861: What is the missing number: ? + 167 = 186
Answer: 19
💡 Missing number = 186 - 167 = 19; check: 167 + 19 = 186.
Q10862: What is the missing number: 172 + ? = 350
Answer: 178
💡 Missing number = 350 - 172 = 178; check: 172 + 178 = 350.
Q10863: What is the value of x if: x - 31 = 88
Answer: 119
💡 x = 88 + 31 = 119; check: 119 - 31 = 88.
Q10864: What is the missing number: ? + 20 = 45
Answer: 25
💡 Missing number = 45 - 20 = 25; check: 20 + 25 = 45.
Q10865: What is the value of x if: x - 38 = 80
Answer: 118
💡 x = 80 + 38 = 118; check: 118 - 38 = 80.
Q10866: What is the missing number: 92 + ? = 179
Answer: 87
💡 Missing number = 179 - 92 = 87; check: 92 + 87 = 179.
Q10867: What is the value of x if: x - 89 = 15
Answer: 104
💡 x = 15 + 89 = 104; check: 104 - 89 = 15.
Q10868: What is the missing number: 155 + ? = 299
Answer: 144
💡 Missing number = 299 - 155 = 144; check: 155 + 144 = 299.
Q10869: What is the missing number: ? + 76 = 174
Answer: 98
💡 Missing number = 174 - 76 = 98; check: 76 + 98 = 174.
Q10870: What is the value of x if: x - 66 = 15
Answer: 81
💡 x = 15 + 66 = 81; check: 81 - 66 = 15.
Q10871: What is the missing number: 128 + ? = 243
Answer: 115
💡 Missing number = 243 - 128 = 115; check: 128 + 115 = 243.
Q10872: What is the missing number: ? + 138 = 159
Answer: 21
💡 Missing number = 159 - 138 = 21; check: 138 + 21 = 159.
Q10873: What is the missing number: 53 + ? = 97
Answer: 44
💡 Missing number = 97 - 53 = 44; check: 53 + 44 = 97.
Q10874: What is the missing number: 82 + ? = 183
Answer: 101
💡 Missing number = 183 - 82 = 101; check: 82 + 101 = 183.
Q10875: What is the missing number: 83 + ? = 129
Answer: 46
💡 Missing number = 129 - 83 = 46; check: 83 + 46 = 129.
Q10876: What is the missing number: ? + 34 = 102
Answer: 68
💡 Missing number = 102 - 34 = 68; check: 34 + 68 = 102.
Q10877: What is the value of x if: x - 58 = 123
Answer: 181
💡 x = 123 + 58 = 181; check: 181 - 58 = 123.
Q10878: What is the missing number: ? + 111 = 120
Answer: 9
💡 Missing number = 120 - 111 = 9; check: 111 + 9 = 120.
Q10879: What is the missing number: ? + 51 = 203
Answer: 152
💡 Missing number = 203 - 51 = 152; check: 51 + 152 = 203.
Q10880: What is the value of x if: x - 22 = 230
Answer: 252
💡 x = 230 + 22 = 252; check: 252 - 22 = 230.
Q10881: What is the missing number: ? + 164 = 325
Answer: 161
💡 Missing number = 325 - 164 = 161; check: 164 + 161 = 325.
Q10882: What is the missing number: 79 + ? = 220
Answer: 141
💡 Missing number = 220 - 79 = 141; check: 79 + 141 = 220.
Q10883: What is the value of x if: x - 16 = 3
Answer: 19
💡 x = 3 + 16 = 19; check: 19 - 16 = 3.
Q10884: What is the missing number: ? + 106 = 192
Answer: 86
💡 Missing number = 192 - 106 = 86; check: 106 + 86 = 192.
Q10885: What is the missing number: ? + 47 = 218
Answer: 171
💡 Missing number = 218 - 47 = 171; check: 47 + 171 = 218.
Q10886: What is the missing number: 83 + ? = 181
Answer: 98
💡 Missing number = 181 - 83 = 98; check: 83 + 98 = 181.
Q10887: What is the missing number: 164 + ? = 287
Answer: 123
💡 Missing number = 287 - 164 = 123; check: 164 + 123 = 287.
Q10888: What is the missing number: 39 + ? = 145
Answer: 106
💡 Missing number = 145 - 39 = 106; check: 39 + 106 = 145.
Q10889: What is the missing number: ? + 169 = 231
Answer: 62
💡 Missing number = 231 - 169 = 62; check: 169 + 62 = 231.
Q10890: What is the missing number: ? + 104 = 264
Answer: 160
💡 Missing number = 264 - 104 = 160; check: 104 + 160 = 264.
Q10891: What is the missing number: ? + 7 = 160
Answer: 153
💡 Missing number = 160 - 7 = 153; check: 7 + 153 = 160.
Q10892: What is the value of x if: x - 156 = 134
Answer: 290
💡 x = 134 + 156 = 290; check: 290 - 156 = 134.
Q10893: What is the missing number: ? + 46 = 143
Answer: 97
💡 Missing number = 143 - 46 = 97; check: 46 + 97 = 143.
Q10894: What is the value of x if: x - 11 = 113
Answer: 124
💡 x = 113 + 11 = 124; check: 124 - 11 = 113.
Q10895: What is the missing number: ? + 155 = 279
Answer: 124
💡 Missing number = 279 - 155 = 124; check: 155 + 124 = 279.
Q10896: What is the missing number: ? + 160 = 164
Answer: 4
💡 Missing number = 164 - 160 = 4; check: 160 + 4 = 164.
Q10897: What is the missing number: 72 + ? = 229
Answer: 157
💡 Missing number = 229 - 72 = 157; check: 72 + 157 = 229.
Q10898: What is the missing number: ? + 133 = 294
Answer: 161
💡 Missing number = 294 - 133 = 161; check: 133 + 161 = 294.
Q10899: What is the value of x if: x - 94 = 121
Answer: 215
💡 x = 121 + 94 = 215; check: 215 - 94 = 121.
Q10900: What is the missing number: ? + 72 = 218
Answer: 146
💡 Missing number = 218 - 72 = 146; check: 72 + 146 = 218.
Q10901: What is the missing number: ? + 157 = 198
Answer: 41
💡 Missing number = 198 - 157 = 41; check: 157 + 41 = 198.
Q10902: What is the value of x if: x - 34 = 35
Answer: 69
💡 x = 35 + 34 = 69; check: 69 - 34 = 35.
Q10903: What is the value of x if: x - 139 = 19
Answer: 158
💡 x = 19 + 139 = 158; check: 158 - 139 = 19.
Q10904: What is the missing number: 45 + ? = 209
Answer: 164
💡 Missing number = 209 - 45 = 164; check: 45 + 164 = 209.
Q10905: What is the missing number: ? + 97 = 108
Answer: 11
💡 Missing number = 108 - 97 = 11; check: 97 + 11 = 108.
Q10906: What is the missing number: 55 + ? = 235
Answer: 180
💡 Missing number = 235 - 55 = 180; check: 55 + 180 = 235.
Q10907: What is the missing number: 49 + ? = 177
Answer: 128
💡 Missing number = 177 - 49 = 128; check: 49 + 128 = 177.
Q10908: What is the missing number: 106 + ? = 139
Answer: 33
💡 Missing number = 139 - 106 = 33; check: 106 + 33 = 139.
Q10909: What is the value of x if: x - 34 = 109
Answer: 143
💡 x = 109 + 34 = 143; check: 143 - 34 = 109.
Q10910: What is the value of x if: x - 85 = 106
Answer: 191
💡 x = 106 + 85 = 191; check: 191 - 85 = 106.
Q10911: What is the value of x if: x - 76 = 142
Answer: 218
💡 x = 142 + 76 = 218; check: 218 - 76 = 142.
Q10912: What is the value of x if: x - 77 = 137
Answer: 214
💡 x = 137 + 77 = 214; check: 214 - 77 = 137.
Q10913: What is the value of x if: x - 7 = 21
Answer: 28
💡 x = 21 + 7 = 28; check: 28 - 7 = 21.
Q10914: What is the missing number: ? + 107 = 216
Answer: 109
💡 Missing number = 216 - 107 = 109; check: 107 + 109 = 216.
Q10915: What is the missing number: 89 + ? = 155
Answer: 66
💡 Missing number = 155 - 89 = 66; check: 89 + 66 = 155.
Q10916: What is the missing number: ? + 89 = 155
Answer: 66
💡 Missing number = 155 - 89 = 66; check: 89 + 66 = 155.
Q10917: What is the value of x if: x - 33 = 98
Answer: 131
💡 x = 98 + 33 = 131; check: 131 - 33 = 98.
Q10918: What is the value of x if: x - 83 = 15
Answer: 98
💡 x = 15 + 83 = 98; check: 98 - 83 = 15.
Q10919: What is the missing number: 69 + ? = 238
Answer: 169
💡 Missing number = 238 - 69 = 169; check: 69 + 169 = 238.
Q10920: What is the missing number: ? + 169 = 234
Answer: 65
💡 Missing number = 234 - 169 = 65; check: 169 + 65 = 234.
Q10921: What is the missing number: ? + 74 = 144
Answer: 70
💡 Missing number = 144 - 74 = 70; check: 74 + 70 = 144.
Q10922: What is the missing number: 147 + ? = 295
Answer: 148
💡 Missing number = 295 - 147 = 148; check: 147 + 148 = 295.
Q10923: What is the missing number: ? + 81 = 89
Answer: 8
💡 Missing number = 89 - 81 = 8; check: 81 + 8 = 89.
Q10924: What is the missing number: 41 + ? = 169
Answer: 128
💡 Missing number = 169 - 41 = 128; check: 41 + 128 = 169.
Q10925: What is the missing number: 7 + ? = 49
Answer: 42
💡 Missing number = 49 - 7 = 42; check: 7 + 42 = 49.
Q10926: What is the value of x if: x - 27 = 34
Answer: 61
💡 x = 34 + 27 = 61; check: 61 - 27 = 34.
Q10927: What is the missing number: ? + 158 = 263
Answer: 105
💡 Missing number = 263 - 158 = 105; check: 158 + 105 = 263.
Q10928: What is the missing number: 121 + ? = 194
Answer: 73
💡 Missing number = 194 - 121 = 73; check: 121 + 73 = 194.
Q10929: What is the missing number: 78 + ? = 250
Answer: 172
💡 Missing number = 250 - 78 = 172; check: 78 + 172 = 250.
Q10930: What is the missing number: 97 + ? = 237
Answer: 140
💡 Missing number = 237 - 97 = 140; check: 97 + 140 = 237.
Q10931: What is the value of x if: x - 35 = 48
Answer: 83
💡 x = 48 + 35 = 83; check: 83 - 35 = 48.
Q10932: What is the missing number: ? + 170 = 312
Answer: 142
💡 Missing number = 312 - 170 = 142; check: 170 + 142 = 312.
Q10933: What is the value of x if: x - 205 = 34
Answer: 239
💡 x = 34 + 205 = 239; check: 239 - 205 = 34.
Q10934: What is the missing number: ? + 151 = 180
Answer: 29
💡 Missing number = 180 - 151 = 29; check: 151 + 29 = 180.
Q10935: What is the missing number: 113 + ? = 181
Answer: 68
💡 Missing number = 181 - 113 = 68; check: 113 + 68 = 181.
Q10936: What is the value of x if: x - 97 = 96
Answer: 193
💡 x = 96 + 97 = 193; check: 193 - 97 = 96.
Q10937: What is the missing number: ? + 142 = 221
Answer: 79
💡 Missing number = 221 - 142 = 79; check: 142 + 79 = 221.
Q10938: What is the missing number: ? + 144 = 313
Answer: 169
💡 Missing number = 313 - 144 = 169; check: 144 + 169 = 313.
Q10939: What is the missing number: 19 + ? = 161
Answer: 142
💡 Missing number = 161 - 19 = 142; check: 19 + 142 = 161.
Q10940: What is the missing number: 170 + ? = 314
Answer: 144
💡 Missing number = 314 - 170 = 144; check: 170 + 144 = 314.
Q10941: What is the missing number: 169 + ? = 285
Answer: 116
💡 Missing number = 285 - 169 = 116; check: 169 + 116 = 285.
Q10942: What is the missing number: 37 + ? = 82
Answer: 45
💡 Missing number = 82 - 37 = 45; check: 37 + 45 = 82.
Q10943: What is the missing number: 135 + ? = 280
Answer: 145
💡 Missing number = 280 - 135 = 145; check: 135 + 145 = 280.
Q10944: What is the missing number: 37 + ? = 200
Answer: 163
💡 Missing number = 200 - 37 = 163; check: 37 + 163 = 200.
Q10945: What is the value of x if: x - 121 = 132
Answer: 253
💡 x = 132 + 121 = 253; check: 253 - 121 = 132.
Q10946: What is the missing number: ? + 126 = 216
Answer: 90
💡 Missing number = 216 - 126 = 90; check: 126 + 90 = 216.
Q10947: What is the missing number: 30 + ? = 169
Answer: 139
💡 Missing number = 169 - 30 = 139; check: 30 + 139 = 169.
Q10948: What is the value of x if: x - 120 = 55
Answer: 175
💡 x = 55 + 120 = 175; check: 175 - 120 = 55.
Q10949: What is the missing number: 32 + ? = 180
Answer: 148
💡 Missing number = 180 - 32 = 148; check: 32 + 148 = 180.
Q10950: What is the value of x if: x - 44 = 25
Answer: 69
💡 x = 25 + 44 = 69; check: 69 - 44 = 25.
Q10951: What is the missing number: ? × 8 = 40
Answer: 5
💡 Missing number = 40 ÷ 8 = 5; check: 5 × 8 = 40.
Q10952: What is the missing number: ? + 45 = 149
Answer: 104
💡 Missing number = 149 - 45 = 104; check: 45 + 104 = 149.
Q10953: What is the value of x if: x - 11 = 183
Answer: 194
💡 x = 183 + 11 = 194; check: 194 - 11 = 183.
Q10954: What is the missing number: ? + 132 = 153
Answer: 21
💡 Missing number = 153 - 132 = 21; check: 132 + 21 = 153.
Q10955: What is the missing number: ? × 4 = 40
Answer: 10
💡 Missing number = 40 ÷ 4 = 10; check: 10 × 4 = 40.
Q10956: What is the value of x if: x - 172 = 126
Answer: 298
💡 x = 126 + 172 = 298; check: 298 - 172 = 126.
Q10957: What is the missing number: 40 + ? = 131
Answer: 91
💡 Missing number = 131 - 40 = 91; check: 40 + 91 = 131.
Q10958: What is the value of x if: x - 38 = 138
Answer: 176
💡 x = 138 + 38 = 176; check: 176 - 38 = 138.
Q10959: What is the missing number: 144 + ? = 147
Answer: 3
💡 Missing number = 147 - 144 = 3; check: 144 + 3 = 147.
Q10960: What is the value of x if: x - 66 = 26
Answer: 92
💡 x = 26 + 66 = 92; check: 92 - 66 = 26.
Q10961: What is the missing number: 79 + ? = 126
Answer: 47
💡 Missing number = 126 - 79 = 47; check: 79 + 47 = 126.
Q10962: What is the missing number: ? + 141 = 182
Answer: 41
💡 Missing number = 182 - 141 = 41; check: 141 + 41 = 182.
Q10963: What is the missing number: ? + 64 = 134
Answer: 70
💡 Missing number = 134 - 64 = 70; check: 64 + 70 = 134.
Q10964: What is the value of x if: x - 71 = 57
Answer: 128
💡 x = 57 + 71 = 128; check: 128 - 71 = 57.
Q10965: What is the missing number: 97 + ? = 200
Answer: 103
💡 Missing number = 200 - 97 = 103; check: 97 + 103 = 200.
Q10966: What is the missing number: ? + 86 = 148
Answer: 62
💡 Missing number = 148 - 86 = 62; check: 86 + 62 = 148.
Q10967: What is the missing number: ? + 57 = 67
Answer: 10
💡 Missing number = 67 - 57 = 10; check: 57 + 10 = 67.
Q10968: What is the missing number: 91 + ? = 175
Answer: 84
💡 Missing number = 175 - 91 = 84; check: 91 + 84 = 175.
Q10969: What is the missing number: 121 + ? = 276
Answer: 155
💡 Missing number = 276 - 121 = 155; check: 121 + 155 = 276.
Q10970: What is the value of x if: x - 92 = 153
Answer: 245
💡 x = 153 + 92 = 245; check: 245 - 92 = 153.
Q10971: What is the missing number: 89 + ? = 171
Answer: 82
💡 Missing number = 171 - 89 = 82; check: 89 + 82 = 171.
Q10972: What is the missing number: 20 + ? = 127
Answer: 107
💡 Missing number = 127 - 20 = 107; check: 20 + 107 = 127.
Q10973: What is the missing number: 100 + ? = 156
Answer: 56
💡 Missing number = 156 - 100 = 56; check: 100 + 56 = 156.
Q10974: What is the value of x if: x - 6 = 18
Answer: 24
💡 x = 18 + 6 = 24; check: 24 - 6 = 18.
Q10975: What is the missing number: ? + 91 = 190
Answer: 99
💡 Missing number = 190 - 91 = 99; check: 91 + 99 = 190.
Q10976: What is the missing number: ? + 101 = 185
Answer: 84
💡 Missing number = 185 - 101 = 84; check: 101 + 84 = 185.
Q10977: What is the missing number: ? + 21 = 59
Answer: 38
💡 Missing number = 59 - 21 = 38; check: 21 + 38 = 59.
Q10978: What is the missing number: ? + 149 = 323
Answer: 174
💡 Missing number = 323 - 149 = 174; check: 149 + 174 = 323.
Q10979: What is the missing number: 16 + ? = 42
Answer: 26
💡 Missing number = 42 - 16 = 26; check: 16 + 26 = 42.
Q10980: What is the value of x if: x - 27 = 9
Answer: 36
💡 x = 9 + 27 = 36; check: 36 - 27 = 9.
Q10981: What is the value of x if: x - 174 = 27
Answer: 201
💡 x = 27 + 174 = 201; check: 201 - 174 = 27.
Q10982: What is the missing number: ? + 61 = 106
Answer: 45
💡 Missing number = 106 - 61 = 45; check: 61 + 45 = 106.
Q10983: What is the missing number: 125 + ? = 181
Answer: 56
💡 Missing number = 181 - 125 = 56; check: 125 + 56 = 181.
Q10984: What is the missing number: 116 + ? = 296
Answer: 180
💡 Missing number = 296 - 116 = 180; check: 116 + 180 = 296.
Q10985: What is the value of x if: x - 58 = 25
Answer: 83
💡 x = 25 + 58 = 83; check: 83 - 58 = 25.
Q10986: What is the missing number: 21 + ? = 155
Answer: 134
💡 Missing number = 155 - 21 = 134; check: 21 + 134 = 155.
Q10987: What is the value of x if: x - 57 = 140
Answer: 197
💡 x = 140 + 57 = 197; check: 197 - 57 = 140.
Q10988: What is the missing number: ? + 37 = 110
Answer: 73
💡 Missing number = 110 - 37 = 73; check: 37 + 73 = 110.
Q10989: What is the missing number: ? + 134 = 198
Answer: 64
💡 Missing number = 198 - 134 = 64; check: 134 + 64 = 198.
Q10990: What is the missing number: ? + 63 = 163
Answer: 100
💡 Missing number = 163 - 63 = 100; check: 63 + 100 = 163.
Q10991: What is the missing number: ? × 7 = 42
Answer: 6
💡 Missing number = 42 ÷ 7 = 6; check: 6 × 7 = 42.
Q10992: What is the value of x if: x - 56 = 142
Answer: 198
💡 x = 142 + 56 = 198; check: 198 - 56 = 142.
Q10993: What is the value of x if: x - 32 = 17
Answer: 49
💡 x = 17 + 32 = 49; check: 49 - 32 = 17.
Q10994: What is the missing number: 157 + ? = 247
Answer: 90
💡 Missing number = 247 - 157 = 90; check: 157 + 90 = 247.
Q10995: What is the missing number: ? + 130 = 181
Answer: 51
💡 Missing number = 181 - 130 = 51; check: 130 + 51 = 181.
Q10996: What is the missing number: ? + 176 = 333
Answer: 157
💡 Missing number = 333 - 176 = 157; check: 176 + 157 = 333.
Q10997: What is the missing number: ? + 73 = 122
Answer: 49
💡 Missing number = 122 - 73 = 49; check: 73 + 49 = 122.
Q10998: What is the value of x if: x - 120 = 23
Answer: 143
💡 x = 23 + 120 = 143; check: 143 - 120 = 23.
Q10999: What is the missing number: ? + 111 = 199
Answer: 88
💡 Missing number = 199 - 111 = 88; check: 111 + 88 = 199.
Q11000: What is the missing number: ? + 137 = 316
Answer: 179
💡 Missing number = 316 - 137 = 179; check: 137 + 179 = 316.