Multiplication and Division Within 100 Pre-assessment

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What is multiplication?

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

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What is division?

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Division is a mathematical operation where a number is split into equal parts. For example, 12 divided by 3 (12 ÷ 3) means splitting 12 into 3 equal parts, which equals 4.

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What does it mean to split into groups in division?

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Splitting into groups means dividing a total amount into smaller, equal parts. For example, if you have 20 candies and want to share them with 4 friends, each friend gets 5 candies.

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How can you represent a multiplication problem with an equation?

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A multiplication problem can be represented with an equation using the format: number of groups x number in each group = total. For example, 4 x 5 = 20.

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How can you represent a division problem with an equation?

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A division problem can be represented with an equation using the format: total ÷ number of groups = number in each group. For example, 20 ÷ 4 = 5.

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What is the relationship between multiplication and division?

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Multiplication and division are inverse operations. This means that if you know one, you can find the other. For example, if 4 x 5 = 20, then 20 ÷ 5 = 4.

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How do you find the total number of items when each group has the same amount?

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To find the total number of items, multiply the number of groups by the number of items in each group. For example, if there are 6 groups with 3 items each, the total is 6 x 3 = 18.

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What is a multiplication equation?

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A multiplication equation shows the relationship between groups and the total. For example, 7 x 6 = 42 means there are 7 groups of 6, totaling 42.

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What is a division equation?

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A division equation shows how a total is split into equal parts. For example, 36 ÷ 6 = 6 means 36 is divided into 6 equal parts, each part being 6.

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How do you check your multiplication answer?

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To check your multiplication answer, you can use division. If you multiplied 4 x 5 = 20, you can check by dividing 20 ÷ 5 = 4.