Friendly Numbers

Front

What is a friendly number?

Back

A friendly number is a number that is easy to add to or subtract from another number, often ending in 0 or 5.

Front

What is the friendly number for 69?

Back

70

Front

What is the friendly number for 18?

Back

20

Front

How many do you need to add to get from 57 to 60?

Back

3

Front

How many do you need to count back to get from 13 to 10?

Back

3

Front

How many do you need to add to get from 29 to 30?

Back

1

Front

What is the friendly number for 24?

Back

30

Front

What is the friendly number for 42?

Back

40

Front

How many do you need to add to get from 34 to 40?

Back

6

Front

What is the friendly number for 76?

Back

80