Multiplication and Division Within 100 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 multiplied by 4 (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, 12 divided by 3 (12 ÷ 3) means splitting 12 into 3 equal parts, which equals 4.

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How do you find the total number of items when each person gets the same amount?

Back

To find the total number of items, multiply the number of people by the amount each person gets. For example, if 6 friends each get 5 cookies, the total is 6 x 5 = 30 cookies.

Front

What is the equation for finding out how many groups can be made from a total?

Back

The equation is total ÷ number of items per group = number of groups. For example, 56 sharks divided into groups of 8 is 56 ÷ 8 = 7 groups.

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What does the symbol 'x' represent in multiplication problems?

Back

In multiplication problems, 'x' often represents an unknown number that you need to find. For example, in the equation 7 x x = 84, 'x' is the number of miles Jack runs each day.

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What is a multiplication equation?

Back

A multiplication equation shows the relationship between two numbers being multiplied. For example, 4 x 5 = 20 is a multiplication equation.

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What is a division equation?

Back

A division equation shows how a total is split into equal parts. For example, 20 ÷ 4 = 5 is a division equation.

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How can you check if a division problem is correct?

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You can check a division problem by multiplying the quotient (the answer) by the divisor (the number you divided by) to see if it equals the dividend (the original number).

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What is the relationship between multiplication and division?

Back

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 solve a word problem involving multiplication?

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To solve a word problem involving multiplication, identify the numbers involved, determine what is being asked, and then set up a multiplication equation to find the answer.