Adding and subtracting within 20

Front

8 + 4 =

Back

12

Front

3 - 1 =

Back

2

Front

15 + 4 =

Back

19

Front

20 - 10 =

Back

10

Front

12 + 7 =

Back

19

Front

What is addition?

Back

Addition is combining two or more numbers to get a total.

Front

What is subtraction?

Back

Subtraction is taking one number away from another.

Front

What is the sum of 5 and 3?

Back

8

Front

What is the difference between 10 and 4?

Back

6

Front

If you have 7 apples and you eat 2, how many do you have left?

Back

5