Math · Fifth Grade, Primary · Unit 3: Multiplication · First Semester
A 10-question quiz; after every question you'll see the right answer with an explanation.
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Students discover patterns when multiplying by multiples of 10, 100, and 1,000, so they can calculate products like 7 × 8,000 mentally using basic facts and counting zeros.
💡 Tip: Watch out when the basic fact ends in zero: 50 × 40 = 2,000 because 5 × 4 = 20 and then we add two zeros, so the product has three zeros.
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Multiply the basic fact 4 × 6 = 24, then add the number of zeros in the factors, which is four, so the product is 240,000.
7 × 8 = 56, then add three zeros, so the product is 56,000.
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.
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.