Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 872 · 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. 1.30 + 52 + 76 + 55 =
2. 2.26 + 26 + 28 + 11 =
3. 3.42 + 68 + 78 + 71 =
4. 4.69 + 22 + 82 + 45 =
5. 5.58 + 55 + 49 + 64 =
6. 6.72 + 44 + 42 + 26 =
7. 7.50 + 21 + 56 + 19 =
8. 8.87 + 47 + 87 + 55 =
9. 9.22 + 29 + 19 + 13 =
10. 10.42 + 13 + 12 + 27 =
11. 11.28 + 78 + 71 + 81 =
12. 12.67 + 31 + 78 + 23 =
13. 13.65 + 87 + 61 + 34 =
14. 14.84 + 16 + 68 + 41 =
15. 15.45 + 73 + 67 + 15 =
16. 16.23 + 67 + 29 + 60 =
17. 17.31 + 46 + 77 + 35 =
18. 18.75 + 85 + 54 + 72 =
19. 19.34 + 32 + 30 + 19 =
20. 20.11 + 61 + 66 + 79 =
21. 21.77 + 17 + 38 + 74 =
22. 22.24 + 23 + 15 + 48 =
23. 23.88 + 89 + 25 + 58 =
24. 24.34 + 29 + 53 + 66 =
25. 25.36 + 85 + 29 + 26 =
26. 26.14 + 67 + 35 + 57 =
27. 27.83 + 63 + 82 + 23 =
28. 28.89 + 38 + 17 + 81 =
29. 29.34 + 46 + 84 + 75 =
30. 30.50 + 63 + 57 + 20 =
31. 31.25 + 75 + 69 + 20 =
32. 32.59 + 32 + 84 + 37 =
33. 33.87 + 19 + 67 + 69 =
34. 34.75 + 76 + 14 + 88 =
35. 35.21 + 40 + 60 + 43 =
36. 36.32 + 46 + 27 + 54 =
37. 37.54 + 14 + 67 + 50 =
38. 38.80 + 13 + 59 + 76 =
39. 39.27 + 49 + 80 + 62 =
40. 40.45 + 88 + 34 + 19 =

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