Adding Within 20 Fluency

Front

9 + 9 = ?

Back

18

Front

9 + 7 = ?

Back

16

Front

4 + 8 = ?

Back

12

Front

6 + 6 = ?

Back

12

Front

3 + 8 = ?

Back

11

Front

5 + 5 = ?

Back

10

Front

2 + 7 = ?

Back

9

Front

1 + 8 = ?

Back

9

Front

10 + 5 = ?

Back

15

Front

7 + 2 = ?

Back

9