← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 721 · 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. 1.61 + 88 + 88 + 21 =
  2. 2.62 + 42 + 49 + 37 =
  3. 3.11 + 15 + 32 + 43 =
  4. 4.61 + 58 + 31 + 15 =
  5. 5.32 + 70 + 63 + 16 =
  6. 6.27 + 11 + 17 + 34 =
  7. 7.16 + 20 + 86 + 46 =
  8. 8.21 + 28 + 17 + 14 =
  9. 9.30 + 72 + 14 + 54 =
  10. 10.74 + 13 + 44 + 16 =
  11. 11.13 + 35 + 74 + 84 =
  12. 12.22 + 51 + 30 + 54 =
  13. 13.80 + 27 + 26 + 47 =
  14. 14.89 + 73 + 27 + 78 =
  15. 15.40 + 24 + 43 + 83 =
  16. 16.34 + 19 + 42 + 68 =
  17. 17.87 + 15 + 89 + 20 =
  18. 18.11 + 34 + 64 + 51 =
  19. 19.31 + 42 + 29 + 80 =
  20. 20.69 + 30 + 17 + 59 =
  21. 21.54 + 41 + 32 + 58 =
  22. 22.27 + 24 + 38 + 58 =
  23. 23.60 + 85 + 14 + 45 =
  24. 24.56 + 31 + 22 + 26 =
  25. 25.35 + 15 + 28 + 19 =
  26. 26.38 + 63 + 61 + 27 =
  27. 27.36 + 60 + 87 + 83 =
  28. 28.21 + 70 + 18 + 53 =
  29. 29.32 + 80 + 70 + 72 =
  30. 30.38 + 77 + 50 + 85 =
  31. 31.31 + 79 + 27 + 82 =
  32. 32.82 + 23 + 11 + 18 =
  33. 33.76 + 83 + 30 + 84 =
  34. 34.28 + 63 + 27 + 13 =
  35. 35.68 + 12 + 44 + 36 =
  36. 36.71 + 69 + 26 + 29 =
  37. 37.32 + 17 + 73 + 16 =
  38. 38.30 + 47 + 21 + 82 =
  39. 39.81 + 36 + 16 + 27 =
  40. 40.81 + 36 + 45 + 89 =

Answer key

  1. 258
  2. 190
  3. 101
  4. 165
  5. 181
  6. 89
  7. 168
  8. 80
  9. 170
  10. 147
  11. 206
  12. 157
  13. 180
  14. 267
  15. 190
  16. 163
  17. 211
  18. 160
  19. 182
  20. 175
  21. 185
  22. 147
  23. 204
  24. 135
  25. 97
  26. 189
  27. 266
  28. 162
  29. 254
  30. 250
  31. 219
  32. 134
  33. 273
  34. 131
  35. 160
  36. 195
  37. 138
  38. 180
  39. 160
  40. 251

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