← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 389 · 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. 1.72 + 39 + 16 + 70 =
  2. 2.74 + 46 + 38 + 77 =
  3. 3.14 + 49 + 50 + 55 =
  4. 4.14 + 28 + 12 + 48 =
  5. 5.27 + 84 + 55 + 71 =
  6. 6.37 + 53 + 20 + 64 =
  7. 7.13 + 53 + 18 + 16 =
  8. 8.46 + 30 + 89 + 17 =
  9. 9.28 + 28 + 61 + 43 =
  10. 10.50 + 77 + 27 + 25 =
  11. 11.24 + 32 + 28 + 33 =
  12. 12.89 + 85 + 23 + 43 =
  13. 13.54 + 35 + 19 + 22 =
  14. 14.39 + 68 + 57 + 41 =
  15. 15.46 + 55 + 48 + 16 =
  16. 16.21 + 62 + 25 + 84 =
  17. 17.85 + 48 + 56 + 58 =
  18. 18.89 + 34 + 35 + 84 =
  19. 19.41 + 86 + 33 + 52 =
  20. 20.50 + 71 + 39 + 20 =
  21. 21.39 + 29 + 40 + 38 =
  22. 22.86 + 88 + 65 + 30 =
  23. 23.25 + 30 + 16 + 68 =
  24. 24.54 + 67 + 34 + 15 =
  25. 25.38 + 57 + 22 + 59 =
  26. 26.34 + 14 + 71 + 14 =
  27. 27.16 + 26 + 54 + 34 =
  28. 28.60 + 16 + 54 + 52 =
  29. 29.53 + 64 + 32 + 42 =
  30. 30.53 + 75 + 71 + 50 =
  31. 31.17 + 65 + 73 + 88 =
  32. 32.37 + 41 + 89 + 47 =
  33. 33.29 + 18 + 39 + 87 =
  34. 34.21 + 51 + 85 + 28 =
  35. 35.68 + 40 + 73 + 25 =
  36. 36.33 + 31 + 14 + 75 =
  37. 37.11 + 78 + 22 + 19 =
  38. 38.16 + 26 + 87 + 45 =
  39. 39.82 + 51 + 65 + 27 =
  40. 40.23 + 66 + 23 + 46 =

Answer key

  1. 197
  2. 235
  3. 168
  4. 102
  5. 237
  6. 174
  7. 100
  8. 182
  9. 160
  10. 179
  11. 117
  12. 240
  13. 130
  14. 205
  15. 165
  16. 192
  17. 247
  18. 242
  19. 212
  20. 180
  21. 146
  22. 269
  23. 139
  24. 170
  25. 176
  26. 133
  27. 130
  28. 182
  29. 191
  30. 249
  31. 243
  32. 214
  33. 173
  34. 185
  35. 206
  36. 153
  37. 130
  38. 174
  39. 225
  40. 158

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