← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 551 · 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. 1.33 + 89 + 30 + 26 =
  2. 2.26 + 33 + 15 + 12 =
  3. 3.69 + 12 + 73 + 51 =
  4. 4.67 + 46 + 74 + 82 =
  5. 5.55 + 18 + 40 + 76 =
  6. 6.84 + 62 + 69 + 75 =
  7. 7.33 + 82 + 36 + 59 =
  8. 8.33 + 53 + 79 + 20 =
  9. 9.20 + 12 + 53 + 84 =
  10. 10.53 + 76 + 66 + 27 =
  11. 11.19 + 85 + 55 + 81 =
  12. 12.71 + 27 + 21 + 15 =
  13. 13.48 + 58 + 74 + 57 =
  14. 14.13 + 29 + 64 + 64 =
  15. 15.81 + 12 + 31 + 42 =
  16. 16.69 + 35 + 31 + 15 =
  17. 17.20 + 85 + 84 + 46 =
  18. 18.83 + 58 + 47 + 20 =
  19. 19.11 + 63 + 73 + 63 =
  20. 20.88 + 50 + 74 + 11 =
  21. 21.51 + 61 + 20 + 29 =
  22. 22.41 + 31 + 86 + 35 =
  23. 23.63 + 37 + 23 + 23 =
  24. 24.73 + 64 + 41 + 35 =
  25. 25.34 + 71 + 74 + 28 =
  26. 26.73 + 16 + 87 + 22 =
  27. 27.31 + 58 + 31 + 34 =
  28. 28.33 + 17 + 35 + 51 =
  29. 29.49 + 47 + 61 + 77 =
  30. 30.25 + 63 + 18 + 76 =
  31. 31.77 + 54 + 77 + 83 =
  32. 32.64 + 24 + 55 + 55 =
  33. 33.43 + 40 + 26 + 71 =
  34. 34.69 + 37 + 36 + 30 =
  35. 35.60 + 62 + 26 + 13 =
  36. 36.26 + 18 + 47 + 62 =
  37. 37.63 + 76 + 38 + 33 =
  38. 38.23 + 27 + 79 + 72 =
  39. 39.81 + 49 + 17 + 28 =
  40. 40.15 + 68 + 11 + 13 =

Answer key

  1. 178
  2. 86
  3. 205
  4. 269
  5. 189
  6. 290
  7. 210
  8. 185
  9. 169
  10. 222
  11. 240
  12. 134
  13. 237
  14. 170
  15. 166
  16. 150
  17. 235
  18. 208
  19. 210
  20. 223
  21. 161
  22. 193
  23. 146
  24. 213
  25. 207
  26. 198
  27. 154
  28. 136
  29. 234
  30. 182
  31. 291
  32. 198
  33. 180
  34. 172
  35. 161
  36. 153
  37. 210
  38. 201
  39. 175
  40. 107

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