Relating Multiplication and Division

Front

What is multiplication?

Back

Multiplication is a way to add a number to itself a certain number of times. For example, 3 x 4 means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Front

What is division?

Back

Division is splitting a number into equal parts. For example, 12 ÷ 3 means splitting 12 into 3 equal groups, which gives 4.

Front

What is a fact family?

Back

A fact family is a group of related math facts using the same numbers. For example, the numbers 3, 7, and 21 can create the facts: 3 x 7 = 21, 7 x 3 = 21, 21 ÷ 3 = 7, and 21 ÷ 7 = 3.

Front

What does it mean to divide evenly?

Back

Dividing evenly means that when you split a number into groups, each group has the same number of items with none left over.

Front

What is an even number?

Back

An even number is a number that can be divided by 2 without any remainder. Examples include 0, 2, 4, 6, and 8.

Front

What is an odd number?

Back

An odd number is a number that cannot be divided by 2 evenly. Examples include 1, 3, 5, 7, and 9.

Front

How do you find the unknown in a multiplication equation?

Back

To find the unknown in a multiplication equation, you can divide the total by one of the known numbers. For example, in ? x 3 = 18, you can find ? by doing 18 ÷ 3 = 6.

Front

How do you find the unknown in a division equation?

Back

To find the unknown in a division equation, you can multiply the known number by the other number. For example, in 12 ÷ ? = 4, you can find ? by doing 12 ÷ 4 = 3.

Front

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.

Front

If you have 36 toys and 6 bins, how many toys go in each bin?

Back

36 ÷ 6 = 6. So, 6 toys go in each bin.