Adding Multiples of Ten
Name: _______________________________
Date: _______________________________
Instructions: Solve each addition problem. Use mental strategies to help you!
Section A: Adding 10
1. 23 + 10 = __________
2. 45 + 10 = __________
3. 67 + 10 = __________
4. 82 + 10 = __________
5. 31 + 10 = __________
6. 54 + 10 = __________
Section B: Adding 20
7. 14 + 20 = __________
8. 36 + 20 = __________
9. 52 + 20 = __________
10. 48 + 20 = __________
11. 63 + 20 = __________
12. 75 + 20 = __________
Section C: Adding 30
13. 12 + 30 = __________
14. 27 + 30 = __________
15. 44 + 30 = __________
16. 55 + 30 = __________
17. 38 + 30 = __________
18. 61 + 30 = __________
Section D: Mixed Practice
19. 15 + 40 = __________
20. 29 + 50 = __________
21. 33 + 60 = __________
22. 41 + 30 = __________
23. 56 + 20 = __________
24. 72 + 10 = __________
⭐ Challenge Questions
25. 47 + 50 = __________
26. 58 + 40 = __________
27. 65 + 30 = __________