← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 264 · 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. 1.75 + 39 + 29 + 78 =
  2. 2.79 + 62 + 59 + 67 =
  3. 3.83 + 12 + 75 + 32 =
  4. 4.81 + 25 + 11 + 19 =
  5. 5.34 + 46 + 22 + 81 =
  6. 6.67 + 49 + 65 + 15 =
  7. 7.73 + 71 + 28 + 24 =
  8. 8.63 + 66 + 14 + 15 =
  9. 9.51 + 27 + 83 + 67 =
  10. 10.77 + 28 + 41 + 33 =
  11. 11.42 + 47 + 12 + 72 =
  12. 12.39 + 76 + 13 + 68 =
  13. 13.75 + 75 + 67 + 50 =
  14. 14.65 + 39 + 71 + 20 =
  15. 15.82 + 71 + 76 + 63 =
  16. 16.17 + 49 + 24 + 44 =
  17. 17.41 + 13 + 75 + 70 =
  18. 18.68 + 43 + 37 + 39 =
  19. 19.22 + 14 + 15 + 74 =
  20. 20.55 + 81 + 40 + 86 =
  21. 21.63 + 25 + 83 + 65 =
  22. 22.86 + 37 + 50 + 25 =
  23. 23.55 + 43 + 69 + 41 =
  24. 24.37 + 18 + 65 + 29 =
  25. 25.63 + 45 + 57 + 49 =
  26. 26.18 + 73 + 52 + 77 =
  27. 27.36 + 72 + 21 + 31 =
  28. 28.32 + 23 + 42 + 43 =
  29. 29.15 + 13 + 38 + 73 =
  30. 30.40 + 57 + 38 + 22 =
  31. 31.29 + 23 + 13 + 89 =
  32. 32.20 + 42 + 12 + 47 =
  33. 33.31 + 14 + 57 + 29 =
  34. 34.36 + 68 + 31 + 83 =
  35. 35.46 + 23 + 81 + 16 =
  36. 36.62 + 11 + 54 + 20 =
  37. 37.81 + 62 + 71 + 27 =
  38. 38.85 + 13 + 86 + 31 =
  39. 39.76 + 61 + 79 + 46 =
  40. 40.30 + 63 + 23 + 27 =

Answer key

  1. 221
  2. 267
  3. 202
  4. 136
  5. 183
  6. 196
  7. 196
  8. 158
  9. 228
  10. 179
  11. 173
  12. 196
  13. 267
  14. 195
  15. 292
  16. 134
  17. 199
  18. 187
  19. 125
  20. 262
  21. 236
  22. 198
  23. 208
  24. 149
  25. 214
  26. 220
  27. 160
  28. 140
  29. 139
  30. 157
  31. 154
  32. 121
  33. 131
  34. 218
  35. 166
  36. 147
  37. 241
  38. 215
  39. 262
  40. 143

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