Subtract Tens

Answer Key - Grade 1 Math Worksheet - Building Confidence

Write the answer on the line.

1. 1.

   40 - 20 = 20

2. 2.

   40 - 10 = 30

3. 3.

   60 - 10 = 50

4. 4.

   50 - 10 = 40

5. 5.

   70 - 50 = 20

6. 6.

   30 - 10 = 20

7. 7.

   50 - 40 = 10

8. 8.

   50 - 30 = 20

9. 9.

   70 - 10 = 60

10. 10.

    30 - 20 = 10

11. 11.

    50 - 20 = 30

12. 12.

    60 - 20 = 40

13. 13.

    70 - 60 = 10

14. 14.

    20 - 10 = 10

15. 15.

    40 - 30 = 10

16. 16.

    60 - 40 = 20

17. 17.

    70 - 40 = 30

18. 18.

    70 - 30 = 40