Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 876 · 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. 1.78 + 66 + 12 + 73 =
2. 2.40 + 65 + 47 + 45 =
3. 3.38 + 53 + 66 + 89 =
4. 4.49 + 81 + 71 + 83 =
5. 5.79 + 51 + 78 + 65 =
6. 6.85 + 29 + 39 + 57 =
7. 7.31 + 30 + 35 + 71 =
8. 8.21 + 34 + 76 + 67 =
9. 9.89 + 45 + 83 + 39 =
10. 10.71 + 69 + 13 + 37 =
11. 11.39 + 28 + 24 + 62 =
12. 12.39 + 27 + 54 + 29 =
13. 13.39 + 89 + 78 + 53 =
14. 14.74 + 31 + 11 + 86 =
15. 15.24 + 23 + 30 + 51 =
16. 16.48 + 18 + 18 + 58 =
17. 17.86 + 36 + 67 + 74 =
18. 18.20 + 23 + 22 + 29 =
19. 19.22 + 55 + 17 + 13 =
20. 20.53 + 12 + 22 + 29 =
21. 21.33 + 73 + 14 + 25 =
22. 22.82 + 84 + 41 + 35 =
23. 23.82 + 11 + 62 + 67 =
24. 24.13 + 55 + 80 + 48 =
25. 25.19 + 32 + 20 + 14 =
26. 26.27 + 51 + 28 + 24 =
27. 27.45 + 11 + 30 + 24 =
28. 28.27 + 19 + 48 + 30 =
29. 29.46 + 19 + 39 + 53 =
30. 30.53 + 80 + 70 + 40 =
31. 31.27 + 21 + 51 + 70 =
32. 32.52 + 62 + 31 + 56 =
33. 33.42 + 60 + 49 + 35 =
34. 34.13 + 59 + 50 + 26 =
35. 35.86 + 75 + 46 + 72 =
36. 36.24 + 59 + 41 + 19 =
37. 37.20 + 29 + 43 + 34 =
38. 38.49 + 83 + 27 + 80 =
39. 39.54 + 89 + 31 + 20 =
40. 40.34 + 59 + 69 + 39 =

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