Fact Families and Multiplication

The video tutorial introduces the concept of fact families, demonstrating how they can be used to solve multiplication and division problems. It explains the relationships between numbers in a fact family using examples, such as 5, 4, and 20, and 6, 7, and 42. The tutorial provides practice problems for viewers to apply their understanding and concludes with a summary of how fact families help in finding math facts more easily.

What is a fact family?

• A group of numbers related by subtraction and division

• A group of numbers related by addition and subtraction

• A group of numbers related by multiplication and division

• A group of numbers related by addition and multiplication

In the fact family with 5, 4, and 20, what is 5 times 4?

• 10

• 15

• 25

• 20

In the fact family with 5, 4, and 20, what is 4 times 5?

• 20

• 25

• 15

• 10

What is 20 divided by 5 in the fact family with 5, 4, and 20?

• 6

• 5

• 4

• 2

What is 20 divided by 4 in the fact family with 5, 4, and 20?

• 5

• 4

• 6

• 3

In the fact family with 6, 7, and 42, what is 6 times 7?

• 42

• 56

• 36

• 48

In the fact family with 6, 7, and 42, what is 7 times 6?

• 56

• 48

• 36

• 42

What is 42 divided by 6 in the fact family with 6, 7, and 42?

• 7

• 5

• 8

• 6

What is 42 divided by 7 in the fact family with 6, 7, and 42?

• 5

• 6

• 7

• 8

In the fact family with 8, 9, and 72, what is 8 times 9?

• 81

• 72

• 64

• 56