Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 304 · 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. 1.44 + 28 + 61 + 11 =
2. 2.18 + 73 + 18 + 45 =
3. 3.36 + 40 + 74 + 49 =
4. 4.18 + 14 + 59 + 47 =
5. 5.50 + 73 + 33 + 48 =
6. 6.53 + 33 + 52 + 60 =
7. 7.36 + 85 + 82 + 18 =
8. 8.38 + 48 + 43 + 26 =
9. 9.17 + 15 + 66 + 82 =
10. 10.73 + 27 + 56 + 34 =
11. 11.52 + 32 + 77 + 86 =
12. 12.64 + 31 + 26 + 52 =
13. 13.23 + 80 + 18 + 80 =
14. 14.15 + 65 + 60 + 33 =
15. 15.60 + 37 + 41 + 16 =
16. 16.46 + 26 + 66 + 51 =
17. 17.64 + 13 + 24 + 13 =
18. 18.73 + 16 + 73 + 50 =
19. 19.22 + 57 + 88 + 65 =
20. 20.79 + 24 + 38 + 26 =
21. 21.26 + 86 + 55 + 38 =
22. 22.38 + 42 + 29 + 66 =
23. 23.70 + 30 + 41 + 60 =
24. 24.70 + 14 + 81 + 78 =
25. 25.89 + 38 + 85 + 28 =
26. 26.80 + 80 + 78 + 86 =
27. 27.12 + 13 + 35 + 66 =
28. 28.58 + 69 + 79 + 21 =
29. 29.31 + 69 + 58 + 47 =
30. 30.64 + 85 + 70 + 12 =
31. 31.89 + 59 + 62 + 56 =
32. 32.32 + 49 + 19 + 18 =
33. 33.85 + 35 + 16 + 69 =
34. 34.28 + 66 + 61 + 25 =
35. 35.85 + 78 + 16 + 41 =
36. 36.59 + 49 + 85 + 14 =
37. 37.60 + 31 + 32 + 31 =
38. 38.88 + 31 + 11 + 70 =
39. 39.68 + 38 + 27 + 20 =
40. 40.49 + 59 + 73 + 15 =

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