← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 908 · 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. 1.83 + 87 + 62 + 19 =
  2. 2.81 + 37 + 15 + 23 =
  3. 3.13 + 57 + 40 + 11 =
  4. 4.45 + 62 + 27 + 66 =
  5. 5.59 + 40 + 78 + 21 =
  6. 6.82 + 74 + 16 + 20 =
  7. 7.58 + 50 + 17 + 15 =
  8. 8.21 + 45 + 36 + 56 =
  9. 9.33 + 54 + 29 + 47 =
  10. 10.13 + 12 + 84 + 70 =
  11. 11.75 + 50 + 22 + 27 =
  12. 12.31 + 76 + 22 + 39 =
  13. 13.85 + 59 + 23 + 85 =
  14. 14.36 + 82 + 39 + 24 =
  15. 15.44 + 87 + 62 + 24 =
  16. 16.52 + 54 + 72 + 29 =
  17. 17.58 + 49 + 25 + 51 =
  18. 18.78 + 83 + 11 + 54 =
  19. 19.66 + 72 + 80 + 24 =
  20. 20.40 + 25 + 48 + 23 =
  21. 21.27 + 70 + 46 + 35 =
  22. 22.11 + 47 + 38 + 19 =
  23. 23.13 + 22 + 32 + 17 =
  24. 24.45 + 58 + 65 + 11 =
  25. 25.85 + 34 + 12 + 31 =
  26. 26.83 + 24 + 83 + 60 =
  27. 27.61 + 54 + 68 + 48 =
  28. 28.87 + 26 + 16 + 61 =
  29. 29.47 + 36 + 25 + 76 =
  30. 30.75 + 59 + 17 + 65 =
  31. 31.86 + 22 + 83 + 46 =
  32. 32.22 + 27 + 51 + 58 =
  33. 33.51 + 55 + 38 + 43 =
  34. 34.15 + 34 + 42 + 69 =
  35. 35.13 + 84 + 23 + 16 =
  36. 36.44 + 18 + 86 + 47 =
  37. 37.14 + 55 + 35 + 60 =
  38. 38.67 + 13 + 65 + 30 =
  39. 39.29 + 47 + 33 + 72 =
  40. 40.36 + 26 + 29 + 89 =

Answer key

  1. 251
  2. 156
  3. 121
  4. 200
  5. 198
  6. 192
  7. 140
  8. 158
  9. 163
  10. 179
  11. 174
  12. 168
  13. 252
  14. 181
  15. 217
  16. 207
  17. 183
  18. 226
  19. 242
  20. 136
  21. 178
  22. 115
  23. 84
  24. 179
  25. 162
  26. 250
  27. 231
  28. 190
  29. 184
  30. 216
  31. 237
  32. 158
  33. 187
  34. 160
  35. 136
  36. 195
  37. 164
  38. 175
  39. 181
  40. 180

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