← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 351 · 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. 1.27 + 22 + 21 + 57 =
  2. 2.89 + 61 + 51 + 69 =
  3. 3.85 + 84 + 88 + 60 =
  4. 4.83 + 31 + 42 + 24 =
  5. 5.31 + 60 + 11 + 34 =
  6. 6.77 + 78 + 57 + 79 =
  7. 7.13 + 17 + 75 + 62 =
  8. 8.70 + 72 + 39 + 18 =
  9. 9.32 + 45 + 77 + 17 =
  10. 10.51 + 12 + 72 + 84 =
  11. 11.73 + 33 + 78 + 15 =
  12. 12.75 + 42 + 48 + 60 =
  13. 13.46 + 59 + 29 + 56 =
  14. 14.12 + 19 + 14 + 73 =
  15. 15.38 + 11 + 31 + 59 =
  16. 16.80 + 42 + 73 + 14 =
  17. 17.20 + 33 + 54 + 62 =
  18. 18.79 + 76 + 46 + 52 =
  19. 19.34 + 58 + 14 + 64 =
  20. 20.31 + 35 + 62 + 14 =
  21. 21.22 + 54 + 72 + 28 =
  22. 22.26 + 74 + 79 + 14 =
  23. 23.86 + 40 + 77 + 32 =
  24. 24.51 + 77 + 38 + 16 =
  25. 25.24 + 19 + 33 + 12 =
  26. 26.27 + 68 + 59 + 66 =
  27. 27.68 + 28 + 20 + 38 =
  28. 28.72 + 84 + 53 + 18 =
  29. 29.64 + 88 + 67 + 35 =
  30. 30.29 + 38 + 63 + 55 =
  31. 31.20 + 13 + 42 + 77 =
  32. 32.83 + 26 + 71 + 17 =
  33. 33.16 + 74 + 42 + 51 =
  34. 34.72 + 86 + 89 + 26 =
  35. 35.55 + 88 + 31 + 61 =
  36. 36.66 + 34 + 19 + 25 =
  37. 37.24 + 80 + 16 + 24 =
  38. 38.48 + 26 + 33 + 82 =
  39. 39.80 + 80 + 82 + 84 =
  40. 40.55 + 83 + 26 + 37 =

Answer key

  1. 127
  2. 270
  3. 317
  4. 180
  5. 136
  6. 291
  7. 167
  8. 199
  9. 171
  10. 219
  11. 199
  12. 225
  13. 190
  14. 118
  15. 139
  16. 209
  17. 169
  18. 253
  19. 170
  20. 142
  21. 176
  22. 193
  23. 235
  24. 182
  25. 88
  26. 220
  27. 154
  28. 227
  29. 254
  30. 185
  31. 152
  32. 197
  33. 183
  34. 273
  35. 235
  36. 144
  37. 144
  38. 189
  39. 326
  40. 201

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