← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 117 · 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. 1.48 + 14 + 50 + 29 =
  2. 2.75 + 85 + 28 + 44 =
  3. 3.38 + 16 + 12 + 29 =
  4. 4.11 + 72 + 66 + 86 =
  5. 5.81 + 39 + 40 + 75 =
  6. 6.54 + 70 + 31 + 41 =
  7. 7.40 + 78 + 46 + 74 =
  8. 8.23 + 63 + 60 + 34 =
  9. 9.36 + 12 + 80 + 31 =
  10. 10.57 + 15 + 40 + 24 =
  11. 11.76 + 75 + 83 + 61 =
  12. 12.28 + 77 + 58 + 40 =
  13. 13.29 + 76 + 82 + 35 =
  14. 14.64 + 17 + 22 + 24 =
  15. 15.15 + 11 + 33 + 78 =
  16. 16.56 + 77 + 49 + 87 =
  17. 17.14 + 31 + 50 + 19 =
  18. 18.17 + 51 + 22 + 41 =
  19. 19.20 + 78 + 58 + 81 =
  20. 20.22 + 11 + 18 + 71 =
  21. 21.70 + 17 + 85 + 16 =
  22. 22.61 + 54 + 76 + 12 =
  23. 23.48 + 52 + 88 + 54 =
  24. 24.67 + 75 + 16 + 42 =
  25. 25.80 + 66 + 15 + 53 =
  26. 26.56 + 21 + 63 + 60 =
  27. 27.80 + 14 + 46 + 77 =
  28. 28.18 + 83 + 86 + 30 =
  29. 29.60 + 27 + 13 + 24 =
  30. 30.44 + 84 + 74 + 23 =
  31. 31.66 + 42 + 41 + 66 =
  32. 32.66 + 20 + 21 + 86 =
  33. 33.50 + 80 + 62 + 20 =
  34. 34.11 + 33 + 73 + 30 =
  35. 35.87 + 38 + 36 + 29 =
  36. 36.45 + 59 + 64 + 48 =
  37. 37.18 + 16 + 50 + 22 =
  38. 38.79 + 40 + 32 + 31 =
  39. 39.30 + 42 + 13 + 84 =
  40. 40.17 + 59 + 16 + 53 =

Answer key

  1. 141
  2. 232
  3. 95
  4. 235
  5. 235
  6. 196
  7. 238
  8. 180
  9. 159
  10. 136
  11. 295
  12. 203
  13. 222
  14. 127
  15. 137
  16. 269
  17. 114
  18. 131
  19. 237
  20. 122
  21. 188
  22. 203
  23. 242
  24. 200
  25. 214
  26. 200
  27. 217
  28. 217
  29. 124
  30. 225
  31. 215
  32. 193
  33. 212
  34. 147
  35. 190
  36. 216
  37. 106
  38. 182
  39. 169
  40. 145

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