← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 475 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.89 + 59 + 68 + 83 =
  2. 2.37 + 30 + 29 + 33 =
  3. 3.22 + 58 + 17 + 70 =
  4. 4.23 + 52 + 62 + 25 =
  5. 5.11 + 20 + 67 + 20 =
  6. 6.74 + 57 + 66 + 76 =
  7. 7.13 + 43 + 12 + 81 =
  8. 8.40 + 44 + 31 + 57 =
  9. 9.29 + 89 + 69 + 47 =
  10. 10.37 + 65 + 69 + 84 =
  11. 11.12 + 31 + 52 + 28 =
  12. 12.50 + 68 + 65 + 23 =
  13. 13.85 + 60 + 27 + 88 =
  14. 14.89 + 15 + 47 + 59 =
  15. 15.66 + 53 + 19 + 30 =
  16. 16.23 + 16 + 22 + 30 =
  17. 17.55 + 28 + 33 + 32 =
  18. 18.12 + 48 + 60 + 21 =
  19. 19.52 + 87 + 81 + 78 =
  20. 20.23 + 24 + 14 + 25 =
  21. 21.66 + 28 + 22 + 52 =
  22. 22.37 + 38 + 12 + 78 =
  23. 23.57 + 38 + 71 + 32 =
  24. 24.53 + 38 + 52 + 24 =
  25. 25.80 + 12 + 26 + 24 =
  26. 26.61 + 88 + 26 + 36 =
  27. 27.53 + 15 + 32 + 65 =
  28. 28.79 + 88 + 60 + 18 =
  29. 29.41 + 88 + 25 + 48 =
  30. 30.73 + 55 + 51 + 31 =
  31. 31.68 + 47 + 12 + 12 =
  32. 32.25 + 84 + 28 + 45 =
  33. 33.62 + 16 + 68 + 45 =
  34. 34.19 + 85 + 50 + 88 =
  35. 35.78 + 29 + 28 + 17 =
  36. 36.56 + 71 + 78 + 38 =
  37. 37.51 + 29 + 49 + 20 =
  38. 38.68 + 30 + 23 + 89 =
  39. 39.40 + 42 + 31 + 20 =
  40. 40.77 + 65 + 17 + 22 =

Answer key

  1. 299
  2. 129
  3. 167
  4. 162
  5. 118
  6. 273
  7. 149
  8. 172
  9. 234
  10. 255
  11. 123
  12. 206
  13. 260
  14. 210
  15. 168
  16. 91
  17. 148
  18. 141
  19. 298
  20. 86
  21. 168
  22. 165
  23. 198
  24. 167
  25. 142
  26. 211
  27. 165
  28. 245
  29. 202
  30. 210
  31. 139
  32. 182
  33. 191
  34. 242
  35. 152
  36. 243
  37. 149
  38. 210
  39. 133
  40. 181

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