Relating Multiplication and Division of Multi-Digit Numbers

What is the inverse operation of multiplication?

• Subtraction

• Division

• Addition

• Exponentiation

If 56 divided by 7 equals 8, what multiplication fact can you use to check this?

• 7 times 56 equals 8

• 7 times 8 equals 56

• 8 times 7 equals 56

• 56 times 7 equals 8

A cafe owner orders 350 tea bags, with 25 tea bags per box. How many boxes will the owner receive?

• 13

• 12

• 15

• 14

Which of the following is a correct division equation for the tea bag problem?

• 14 divided by 25 equals 350

• 350 divided by 25 equals 14

• 25 divided by 350 equals 14

• 350 divided by 14 equals 25

How many groups of 25 are needed to make 100?

• 2

• 3

• 5

• 4

What is the total number of groups of 25 needed to make 350?

• 14

• 13

• 12

• 15

When dividing 1650 by 22, what is the first step to simplify the problem?

• Divide 1650 by 2

• Count by 22s to 1650

• Multiply 22 by 10

• Subtract 22 from 1650

If 20 groups of 22 equal 440, how many groups are needed to reach 990?

• 40

• 45

• 30

• 50

How many groups of 23 are needed to make 184?

• 6

• 9

• 8

• 7

How many groups of 14 are needed to make 700?

• 40

• 45

• 50

• 55