1-9 Direct Addition & Subtraction (3 sum)

Front

3 + 6 - 5 = ?

Back

4

Front

4 + 5 - 5 = ?

Back

4

Front

9 - 8 + 8 = ?

Back

9

Front

4 + 5 - 4 = ?

Back

5

Front

2 + 2 - 2 = ?

Back

2

Front

1 + 1 - 1 = ?

Back

1

Front

5 + 3 - 5 = ?

Back

3

Front

7 + 2 - 7 = ?

Back

2

Front

6 + 2 - 6 = ?

Back

2

Front

8 + 1 - 8 = ?

Back

1