← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 691 · 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. 1.78 + 88 + 15 + 69 =
  2. 2.76 + 41 + 53 + 69 =
  3. 3.76 + 58 + 78 + 15 =
  4. 4.32 + 14 + 80 + 86 =
  5. 5.79 + 12 + 78 + 49 =
  6. 6.81 + 85 + 60 + 46 =
  7. 7.31 + 61 + 70 + 64 =
  8. 8.89 + 34 + 66 + 78 =
  9. 9.84 + 72 + 79 + 44 =
  10. 10.45 + 43 + 40 + 11 =
  11. 11.30 + 64 + 22 + 16 =
  12. 12.88 + 77 + 85 + 39 =
  13. 13.39 + 39 + 11 + 40 =
  14. 14.58 + 16 + 46 + 42 =
  15. 15.81 + 82 + 29 + 32 =
  16. 16.33 + 44 + 14 + 41 =
  17. 17.54 + 45 + 16 + 12 =
  18. 18.86 + 14 + 36 + 57 =
  19. 19.77 + 76 + 37 + 77 =
  20. 20.78 + 14 + 81 + 14 =
  21. 21.82 + 40 + 72 + 72 =
  22. 22.33 + 47 + 89 + 67 =
  23. 23.49 + 86 + 67 + 77 =
  24. 24.16 + 81 + 20 + 40 =
  25. 25.17 + 71 + 88 + 46 =
  26. 26.77 + 30 + 39 + 15 =
  27. 27.68 + 18 + 49 + 21 =
  28. 28.37 + 74 + 26 + 23 =
  29. 29.68 + 89 + 40 + 74 =
  30. 30.70 + 28 + 16 + 28 =
  31. 31.62 + 65 + 75 + 41 =
  32. 32.45 + 87 + 55 + 33 =
  33. 33.74 + 34 + 45 + 86 =
  34. 34.69 + 13 + 78 + 85 =
  35. 35.31 + 76 + 32 + 50 =
  36. 36.26 + 24 + 25 + 44 =
  37. 37.28 + 68 + 65 + 55 =
  38. 38.31 + 40 + 54 + 67 =
  39. 39.14 + 38 + 11 + 30 =
  40. 40.83 + 66 + 20 + 35 =

Answer key

  1. 250
  2. 239
  3. 227
  4. 212
  5. 218
  6. 272
  7. 226
  8. 267
  9. 279
  10. 139
  11. 132
  12. 289
  13. 129
  14. 162
  15. 224
  16. 132
  17. 127
  18. 193
  19. 267
  20. 187
  21. 266
  22. 236
  23. 279
  24. 157
  25. 222
  26. 161
  27. 156
  28. 160
  29. 271
  30. 142
  31. 243
  32. 220
  33. 239
  34. 245
  35. 189
  36. 119
  37. 216
  38. 192
  39. 93
  40. 204

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