Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 274 · 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. 1.60 + 51 + 55 + 75 =
2. 2.12 + 47 + 27 + 42 =
3. 3.15 + 25 + 53 + 51 =
4. 4.80 + 39 + 40 + 86 =
5. 5.74 + 62 + 23 + 38 =
6. 6.70 + 29 + 13 + 87 =
7. 7.40 + 11 + 85 + 64 =
8. 8.47 + 15 + 41 + 35 =
9. 9.52 + 47 + 48 + 16 =
10. 10.64 + 28 + 73 + 20 =
11. 11.43 + 81 + 89 + 51 =
12. 12.58 + 76 + 50 + 56 =
13. 13.28 + 28 + 16 + 38 =
14. 14.27 + 31 + 78 + 14 =
15. 15.52 + 69 + 81 + 71 =
16. 16.14 + 77 + 57 + 24 =
17. 17.34 + 77 + 53 + 62 =
18. 18.52 + 18 + 42 + 17 =
19. 19.36 + 26 + 70 + 45 =
20. 20.27 + 17 + 55 + 27 =
21. 21.87 + 46 + 16 + 62 =
22. 22.76 + 22 + 45 + 28 =
23. 23.40 + 52 + 89 + 25 =
24. 24.14 + 38 + 50 + 67 =
25. 25.51 + 41 + 27 + 69 =
26. 26.23 + 12 + 73 + 11 =
27. 27.14 + 28 + 66 + 41 =
28. 28.59 + 64 + 44 + 40 =
29. 29.32 + 32 + 81 + 53 =
30. 30.60 + 80 + 77 + 32 =
31. 31.30 + 14 + 87 + 60 =
32. 32.88 + 12 + 32 + 40 =
33. 33.62 + 17 + 75 + 64 =
34. 34.66 + 74 + 45 + 36 =
35. 35.54 + 13 + 34 + 67 =
36. 36.81 + 41 + 89 + 71 =
37. 37.40 + 80 + 44 + 77 =
38. 38.53 + 33 + 32 + 50 =
39. 39.75 + 34 + 74 + 61 =
40. 40.87 + 83 + 79 + 33 =

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