Grade 1 Mixed Addition and Subtraction to 20

Look at the sign in each problem. Add or subtract to find the answer.

1. 1.4 + 2 =
2. 2.6 − 2 =
3. 3.4 + 7 =
4. 4.19 − 15 =
5. 5.12 + 8 =
6. 6.9 − 1 =
7. 7.4 + 13 =
8. 8.3 − 1 =
9. 9.12 + 7 =
10. 10.17 − 15 =
11. 11.10 + 1 =
12. 12.18 − 4 =
13. 13.2 + 11 =
14. 14.4 − 1 =
15. 15.2 + 14 =
16. 16.20 − 17 =
17. 17.5 + 5 =
18. 18.17 − 7 =
19. 19.7 + 6 =
20. 20.15 − 1 =