+10/-10

Front

15-10

Back

5

Front

20-10

Back

10

Front

2+10

Back

12

Front

16-10

Back

6

Front

7+10

Back

17

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is subtraction?

Back

Subtraction is the process of finding the difference between two numbers by removing one from the other.

Front

What is the sum of 5 and 10?

Back

15

Front

What is the difference between 10 and 4?

Back

6

Front

What is 10 more than 7?

Back

17