Subtract Within 20

Answer Key - Grade 2 Math Worksheet - Challenge Me

Find the difference.

1. 1.

   20 - 17 = ____

   3
2. 2.

   14 - 12 = ____

   2
3. 3.

   16 - 4 = 12

4. 4.

   15 - 9 = 6

5. 5.

   20 - 18 = ____

   2
6. 6.

   18 - 13 = ____

   5
7. 7.

   13 - 9 = 4

8. 8.

   12 - 11 = ____

   1
9. 9.

   17 - 7 = 10

10. 10.

    20 - 12 = ____

    8
11. 11.

    17 - 5 = 12

12. 12.

    16 - 3 = 13

13. 13.

    18 - 5 = 13

14. 14.

    13 - 11 = ____

    2
15. 15.

    16 - 11 = ____

    5
16. 16.

    17 - 9 = 8

17. 17.

    19 - 17 = ____

    2
18. 18.

    20 - 15 = ____

    5
19. 19.

    12 - 7 = 5

20. 20.

    18 - 15 = ____

    3