Add and Subtract within 20

Front

10 + 10 =

Back

20

Front

20 - 17 =

Back

3

Front

8 + 9 =

Back

17

Front

13 + 6 =

Back

19

Front

20 - 15 =

Back

5

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 taking one number away from another.

Front

What is the sum of 5 and 4?

Back

9

Front

What is the difference between 15 and 7?

Back

8

Front

If you have 12 apples and you eat 4, how many do you have left?

Back

8