Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 258 · 40 questions

The fast method (Keep a running total): Start with the first number. Add the tens of the next number, then its ones. Keep going until the list ends — only one total in your head at a time.

1. 1.39 + 82 + 53 + 22 =
2. 2.72 + 20 + 60 + 34 =
3. 3.62 + 30 + 55 + 50 =
4. 4.11 + 27 + 74 + 15 =
5. 5.65 + 82 + 14 + 73 =
6. 6.31 + 68 + 80 + 50 =
7. 7.50 + 43 + 12 + 79 =
8. 8.19 + 77 + 38 + 79 =
9. 9.22 + 36 + 54 + 63 =
10. 10.30 + 74 + 38 + 14 =
11. 11.25 + 53 + 58 + 21 =
12. 12.86 + 79 + 62 + 49 =
13. 13.35 + 12 + 70 + 66 =
14. 14.61 + 24 + 57 + 64 =
15. 15.17 + 12 + 83 + 37 =
16. 16.35 + 26 + 17 + 14 =
17. 17.37 + 27 + 78 + 27 =
18. 18.37 + 38 + 89 + 53 =
19. 19.50 + 21 + 31 + 79 =
20. 20.18 + 20 + 23 + 42 =
21. 21.65 + 59 + 57 + 44 =
22. 22.70 + 75 + 23 + 22 =
23. 23.32 + 63 + 29 + 21 =
24. 24.30 + 70 + 25 + 61 =
25. 25.37 + 85 + 14 + 56 =
26. 26.49 + 55 + 77 + 69 =
27. 27.32 + 59 + 35 + 77 =
28. 28.85 + 86 + 84 + 72 =
29. 29.36 + 57 + 73 + 14 =
30. 30.43 + 81 + 66 + 56 =
31. 31.43 + 56 + 63 + 26 =
32. 32.71 + 16 + 26 + 64 =
33. 33.22 + 15 + 64 + 42 =
34. 34.59 + 31 + 43 + 39 =
35. 35.75 + 18 + 84 + 38 =
36. 36.35 + 85 + 52 + 21 =
37. 37.36 + 70 + 68 + 89 =
38. 38.60 + 61 + 42 + 14 =
39. 39.56 + 81 + 85 + 27 =
40. 40.88 + 82 + 13 + 31 =

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths