Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 80 · 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. 1.47 + 16 + 32 + 47 =
2. 2.83 + 76 + 69 + 75 =
3. 3.14 + 23 + 82 + 18 =
4. 4.62 + 88 + 30 + 76 =
5. 5.37 + 42 + 17 + 38 =
6. 6.11 + 13 + 58 + 63 =
7. 7.64 + 13 + 22 + 47 =
8. 8.83 + 28 + 71 + 52 =
9. 9.49 + 34 + 43 + 39 =
10. 10.25 + 18 + 39 + 28 =
11. 11.77 + 42 + 79 + 11 =
12. 12.83 + 23 + 50 + 63 =
13. 13.13 + 66 + 28 + 66 =
14. 14.52 + 89 + 37 + 36 =
15. 15.73 + 85 + 33 + 59 =
16. 16.31 + 64 + 73 + 35 =
17. 17.59 + 12 + 39 + 23 =
18. 18.17 + 59 + 15 + 47 =
19. 19.86 + 17 + 28 + 27 =
20. 20.30 + 20 + 86 + 81 =
21. 21.57 + 83 + 19 + 43 =
22. 22.69 + 68 + 11 + 72 =
23. 23.16 + 66 + 78 + 29 =
24. 24.42 + 78 + 13 + 76 =
25. 25.57 + 65 + 72 + 52 =
26. 26.34 + 68 + 60 + 39 =
27. 27.35 + 19 + 44 + 23 =
28. 28.24 + 73 + 60 + 60 =
29. 29.87 + 34 + 17 + 87 =
30. 30.40 + 37 + 38 + 83 =
31. 31.79 + 18 + 40 + 21 =
32. 32.51 + 27 + 40 + 75 =
33. 33.38 + 89 + 64 + 60 =
34. 34.64 + 85 + 85 + 18 =
35. 35.84 + 40 + 15 + 16 =
36. 36.80 + 58 + 48 + 83 =
37. 37.36 + 52 + 30 + 78 =
38. 38.80 + 30 + 58 + 20 =
39. 39.67 + 24 + 66 + 65 =
40. 40.67 + 14 + 34 + 57 =

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