Unit 5 Pre-Assessment

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What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 3 x 4 means adding 3 four times: 3 + 3 + 3 + 3 = 12.

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What is division?

Back

Division is a mathematical operation where a number is split into equal parts. For example, 20 ÷ 5 means splitting 20 into 5 equal parts, which equals 4.

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What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. For example, if 4 x 5 = 20, then 20 ÷ 5 = 4.

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What is a missing number problem?

Back

A missing number problem asks you to find a number that makes an equation true. For example, in 3 x ___ = 12, the missing number is 4.

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How do you find the missing number in a division equation?

Back

To find the missing number in a division equation, you can multiply the divisor by the quotient. For example, in ___ ÷ 9 = 4, the missing number is 36 (9 x 4 = 36).

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What does 'weighs' mean in a word problem?

Back

'Weighs' refers to the heaviness of an object. For example, if a box of books weighs 27 pounds, it means the total weight of the box is 27 pounds.

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How do you solve a word problem involving weight?

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To solve a weight problem, divide the total weight by the weight of one item. For example, if a box weighs 27 pounds and each book weighs 3 pounds, you divide 27 by 3 to find the number of books.

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What is a multiplication sentence?

Back

A multiplication sentence is a mathematical statement that shows the result of multiplying two numbers. For example, 8 x 7 = 56 is a multiplication sentence.

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What is a division sentence?

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A division sentence is a mathematical statement that shows the result of dividing one number by another. For example, 56 ÷ 7 = 8 is a division sentence.

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What is the product in multiplication?

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The product is the result of multiplying two or more numbers together. For example, in 3 x 4, the product is 12.