← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 673 · 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. 1.88 + 89 + 61 + 28 =
  2. 2.16 + 68 + 56 + 75 =
  3. 3.41 + 60 + 18 + 39 =
  4. 4.24 + 87 + 36 + 84 =
  5. 5.21 + 59 + 54 + 27 =
  6. 6.70 + 40 + 70 + 15 =
  7. 7.80 + 38 + 34 + 64 =
  8. 8.37 + 36 + 30 + 22 =
  9. 9.56 + 30 + 59 + 79 =
  10. 10.46 + 48 + 69 + 20 =
  11. 11.74 + 63 + 38 + 11 =
  12. 12.29 + 60 + 45 + 63 =
  13. 13.59 + 11 + 27 + 81 =
  14. 14.86 + 16 + 21 + 75 =
  15. 15.36 + 30 + 87 + 18 =
  16. 16.26 + 11 + 53 + 14 =
  17. 17.38 + 61 + 71 + 55 =
  18. 18.30 + 72 + 68 + 50 =
  19. 19.85 + 55 + 80 + 11 =
  20. 20.54 + 43 + 35 + 59 =
  21. 21.12 + 88 + 63 + 55 =
  22. 22.17 + 62 + 31 + 36 =
  23. 23.66 + 37 + 28 + 32 =
  24. 24.14 + 22 + 28 + 60 =
  25. 25.38 + 34 + 19 + 89 =
  26. 26.25 + 19 + 75 + 52 =
  27. 27.12 + 75 + 50 + 80 =
  28. 28.34 + 18 + 67 + 67 =
  29. 29.45 + 22 + 22 + 61 =
  30. 30.36 + 16 + 83 + 11 =
  31. 31.15 + 13 + 35 + 13 =
  32. 32.81 + 79 + 23 + 88 =
  33. 33.17 + 14 + 64 + 68 =
  34. 34.68 + 59 + 33 + 59 =
  35. 35.28 + 54 + 72 + 35 =
  36. 36.36 + 72 + 72 + 28 =
  37. 37.30 + 13 + 29 + 12 =
  38. 38.69 + 62 + 81 + 52 =
  39. 39.27 + 77 + 25 + 62 =
  40. 40.74 + 36 + 28 + 39 =

Answer key

  1. 266
  2. 215
  3. 158
  4. 231
  5. 161
  6. 195
  7. 216
  8. 125
  9. 224
  10. 183
  11. 186
  12. 197
  13. 178
  14. 198
  15. 171
  16. 104
  17. 225
  18. 220
  19. 231
  20. 191
  21. 218
  22. 146
  23. 163
  24. 124
  25. 180
  26. 171
  27. 217
  28. 186
  29. 150
  30. 146
  31. 76
  32. 271
  33. 163
  34. 219
  35. 189
  36. 208
  37. 84
  38. 264
  39. 191
  40. 177

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