Lesson ⁦4-3⁩: Divide by a One-Digit Number

Math · Fifth Grade, Primary · Unit 4: Division · First Semester

A 10-question quiz; after every question you'll see the right answer with an explanation.
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What will you learn in this lesson?

Students divide 2-digit to 4-digit numbers by a 1-digit number using long division: divide, multiply, subtract, compare, bring down.

  • Divides whole numbers by a 1-digit number using long division
  • Determines where to place the first digit of the quotient
  • Checks the quotient using multiplication

💡 Tip: After each subtraction, compare the remainder with the divisor: it must be smaller. If not, the digit you chose for the quotient is too small.

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Worked examples from the Divide by a One-Digit Number lesson questions

What is 84 ÷ 4?
  • 21
  • 20
  • 24
  • 12
✓ 21
8 tens ÷ 4 = 2 tens, and 4 ones ÷ 4 = 1, so the answer is 21. To check: 4 × 21 = 84.
What is 576 ÷ 3?
  • 192
  • 182
  • 129
  • 202
✓ 192
5 ÷ 3 = 1 remainder 2, then 27 ÷ 3 = 9, then 6 ÷ 3 = 2, so the answer is 192. To check: 3 × 192 = 576.
Show more examples (3)
What is 945 ÷ 5?
  • 189
  • 198
  • 179
  • 190
✓ 189
9 ÷ 5 = 1 remainder 4, then 44 ÷ 5 = 8 remainder 4, then 45 ÷ 5 = 9, so the answer is 189. To check: 5 × 189 = 945.
What is 1,624 ÷ 8?
  • 203
  • 23
  • 230
  • 213
✓ 203
16 ÷ 8 = 2, then 2 ÷ 8 = 0, so we write 0 in the quotient, then 24 ÷ 8 = 3, so the answer is 203. To check: 8 × 203 = 1,624.
What is 97 ÷ 4?
  • 24 remainder 1
  • 24 remainder 2
  • 25 remainder 1
  • 23 remainder 1
✓ 24 remainder 1
4 × 24 = 96, and 97 − 96 = 1, so the answer is 24 remainder 1.

FAQ about the Divide by a One-Digit Number lesson

How do I check a division answer?

Multiply the quotient by the divisor and add the remainder, if any; you should get the dividend. Example: 576 ÷ 3 = 192, and 192 × 3 = 576.

What do I do if the first digit of the dividend is smaller than the divisor?

Take the first two digits together. In 1,624 ÷ 8 we start with 16 ÷ 8 = 2, so the quotient starts in the hundreds place, and the quotient is 203.

How do I study the lesson Divide by a One-Digit Number and test myself on it?

Start the lesson quiz on Study with Ghada: 10 questions from the Math Fifth Grade, Primary question bank. After each answer you'll see the right answer with an explanation, and any questions you miss move to “Review my mistakes” until you master them.

Are Study with Ghada quizzes free and aligned with the curriculum?

Yes, completely free. They're built on the Math - Grade 5 - Semester 1 lessons in the same order as the book, and every question is reviewed and approved by a teacher before students see it.