3.OA.6/7 Fact Family

Front

What is a fact family?

Back

A fact family is a group of related addition and subtraction or multiplication and division facts that use the same numbers.

Front

What is the relationship between multiplication and division?

Back

Multiplication and division are inverse operations. If you multiply two numbers, you can divide the product by one of the numbers to get the other.

Front

How do you find the number of items each person gets when sharing?

Back

To find out how many items each person gets, divide the total number of items by the number of people.

Front

What is the equation for sharing 28 cupcakes among 7 friends?

Back

28 ÷ 7 = 4, meaning each friend gets 4 cupcakes.

Front

What is the missing number in the equation 3 x ___ = 21?

Back

The missing number is 7, because 3 x 7 = 21.

Front

How do you complete a fact family with the numbers 8, 5, and 40?

Back

The fact family is: 8 x 5 = 40, 5 x 8 = 40, 40 ÷ 8 = 5, 40 ÷ 5 = 8.

Front

What is the result of 10 x 3?

Back

10 x 3 = 30.

Front

What is the equation for finding how many groups of 10 are in 30?

Back

30 ÷ 10 = 3.

Front

If 8 x ___ = 40, what is the missing number?

Back

The missing number is 5.

Front

What does the equation 21 ÷ 3 = ___ represent?

Back

It represents how many groups of 3 are in 21, which is 7.