← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 727 · 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. 1.74 + 86 + 22 + 21 =
  2. 2.88 + 70 + 36 + 26 =
  3. 3.22 + 64 + 20 + 30 =
  4. 4.22 + 31 + 81 + 23 =
  5. 5.26 + 34 + 38 + 17 =
  6. 6.25 + 63 + 23 + 72 =
  7. 7.88 + 42 + 64 + 66 =
  8. 8.23 + 22 + 87 + 32 =
  9. 9.22 + 72 + 50 + 19 =
  10. 10.83 + 11 + 55 + 11 =
  11. 11.32 + 70 + 49 + 27 =
  12. 12.59 + 23 + 69 + 48 =
  13. 13.70 + 13 + 23 + 35 =
  14. 14.44 + 88 + 43 + 17 =
  15. 15.36 + 14 + 81 + 40 =
  16. 16.57 + 42 + 36 + 18 =
  17. 17.67 + 79 + 30 + 78 =
  18. 18.15 + 32 + 81 + 46 =
  19. 19.76 + 25 + 20 + 55 =
  20. 20.45 + 48 + 46 + 89 =
  21. 21.22 + 75 + 24 + 61 =
  22. 22.13 + 29 + 32 + 82 =
  23. 23.15 + 83 + 36 + 30 =
  24. 24.54 + 45 + 35 + 40 =
  25. 25.12 + 43 + 79 + 42 =
  26. 26.11 + 79 + 52 + 18 =
  27. 27.14 + 65 + 64 + 80 =
  28. 28.14 + 46 + 86 + 73 =
  29. 29.61 + 20 + 65 + 69 =
  30. 30.34 + 56 + 33 + 71 =
  31. 31.79 + 84 + 75 + 73 =
  32. 32.56 + 22 + 80 + 48 =
  33. 33.27 + 27 + 67 + 34 =
  34. 34.40 + 33 + 23 + 28 =
  35. 35.52 + 16 + 55 + 21 =
  36. 36.78 + 69 + 17 + 35 =
  37. 37.66 + 19 + 82 + 84 =
  38. 38.85 + 83 + 24 + 72 =
  39. 39.81 + 35 + 34 + 37 =
  40. 40.27 + 39 + 49 + 22 =

Answer key

  1. 203
  2. 220
  3. 136
  4. 157
  5. 115
  6. 183
  7. 260
  8. 164
  9. 163
  10. 160
  11. 178
  12. 199
  13. 141
  14. 192
  15. 171
  16. 153
  17. 254
  18. 174
  19. 176
  20. 228
  21. 182
  22. 156
  23. 164
  24. 174
  25. 176
  26. 160
  27. 223
  28. 219
  29. 215
  30. 194
  31. 311
  32. 206
  33. 155
  34. 124
  35. 144
  36. 199
  37. 251
  38. 264
  39. 187
  40. 137

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