← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 128 · 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. 1.66 + 20 + 22 + 85 =
  2. 2.25 + 17 + 72 + 88 =
  3. 3.27 + 64 + 17 + 65 =
  4. 4.71 + 80 + 14 + 86 =
  5. 5.48 + 80 + 45 + 71 =
  6. 6.13 + 81 + 43 + 54 =
  7. 7.27 + 46 + 54 + 29 =
  8. 8.43 + 89 + 87 + 40 =
  9. 9.35 + 63 + 23 + 61 =
  10. 10.57 + 59 + 78 + 16 =
  11. 11.15 + 66 + 56 + 39 =
  12. 12.59 + 13 + 73 + 73 =
  13. 13.11 + 37 + 27 + 11 =
  14. 14.46 + 16 + 17 + 83 =
  15. 15.84 + 26 + 43 + 80 =
  16. 16.60 + 39 + 26 + 33 =
  17. 17.30 + 34 + 19 + 16 =
  18. 18.74 + 14 + 28 + 65 =
  19. 19.16 + 44 + 22 + 82 =
  20. 20.87 + 26 + 55 + 71 =
  21. 21.40 + 15 + 30 + 38 =
  22. 22.68 + 26 + 87 + 19 =
  23. 23.31 + 43 + 23 + 31 =
  24. 24.66 + 39 + 40 + 28 =
  25. 25.66 + 33 + 86 + 60 =
  26. 26.13 + 84 + 66 + 78 =
  27. 27.15 + 23 + 81 + 25 =
  28. 28.29 + 23 + 29 + 58 =
  29. 29.31 + 82 + 13 + 15 =
  30. 30.49 + 71 + 87 + 53 =
  31. 31.88 + 87 + 48 + 17 =
  32. 32.74 + 78 + 70 + 77 =
  33. 33.58 + 70 + 15 + 31 =
  34. 34.75 + 70 + 13 + 44 =
  35. 35.82 + 63 + 36 + 32 =
  36. 36.57 + 86 + 29 + 67 =
  37. 37.76 + 87 + 82 + 72 =
  38. 38.87 + 29 + 25 + 86 =
  39. 39.81 + 36 + 12 + 29 =
  40. 40.42 + 86 + 28 + 57 =

Answer key

  1. 193
  2. 202
  3. 173
  4. 251
  5. 244
  6. 191
  7. 156
  8. 259
  9. 182
  10. 210
  11. 176
  12. 218
  13. 86
  14. 162
  15. 233
  16. 158
  17. 99
  18. 181
  19. 164
  20. 239
  21. 123
  22. 200
  23. 128
  24. 173
  25. 245
  26. 241
  27. 144
  28. 139
  29. 141
  30. 260
  31. 240
  32. 299
  33. 174
  34. 202
  35. 213
  36. 239
  37. 317
  38. 227
  39. 158
  40. 213

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