Adding Three Digit Single Numbers

Front

2 + 3 + 1 =

Back

6

Front

3 + 3 + 3 =

Back

9

Front

7 + 3 + 2 =

Back

12

Front

6 + 2 + 2 =

Back

10

Front

2 + 3 + 9 =

Back

14

Front

1 + 1 + 1 =

Back

3

Front

4 + 4 + 1 =

Back

9

Front

5 + 2 + 2 =

Back

9

Front

8 + 1 + 1 =

Back

10

Front

9 + 0 + 1 =

Back

10