← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 487 · 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. 1.42 + 71 + 44 + 83 =
  2. 2.46 + 24 + 17 + 52 =
  3. 3.36 + 81 + 83 + 23 =
  4. 4.49 + 15 + 56 + 41 =
  5. 5.43 + 65 + 57 + 26 =
  6. 6.64 + 58 + 43 + 18 =
  7. 7.50 + 12 + 17 + 71 =
  8. 8.72 + 34 + 30 + 20 =
  9. 9.51 + 31 + 75 + 26 =
  10. 10.31 + 68 + 66 + 80 =
  11. 11.42 + 58 + 71 + 52 =
  12. 12.11 + 85 + 71 + 42 =
  13. 13.21 + 36 + 37 + 45 =
  14. 14.64 + 63 + 79 + 68 =
  15. 15.79 + 11 + 50 + 54 =
  16. 16.25 + 83 + 88 + 57 =
  17. 17.56 + 63 + 81 + 63 =
  18. 18.25 + 21 + 89 + 52 =
  19. 19.63 + 35 + 27 + 49 =
  20. 20.29 + 68 + 60 + 37 =
  21. 21.22 + 33 + 52 + 15 =
  22. 22.62 + 34 + 60 + 23 =
  23. 23.12 + 15 + 58 + 41 =
  24. 24.16 + 77 + 33 + 77 =
  25. 25.11 + 82 + 39 + 34 =
  26. 26.37 + 45 + 72 + 58 =
  27. 27.25 + 47 + 44 + 37 =
  28. 28.56 + 83 + 11 + 22 =
  29. 29.49 + 71 + 41 + 49 =
  30. 30.57 + 86 + 65 + 60 =
  31. 31.33 + 37 + 15 + 18 =
  32. 32.74 + 55 + 31 + 50 =
  33. 33.57 + 76 + 25 + 50 =
  34. 34.48 + 28 + 71 + 39 =
  35. 35.15 + 14 + 34 + 55 =
  36. 36.69 + 27 + 75 + 85 =
  37. 37.30 + 73 + 42 + 38 =
  38. 38.68 + 48 + 88 + 77 =
  39. 39.71 + 20 + 44 + 80 =
  40. 40.22 + 30 + 20 + 12 =

Answer key

  1. 240
  2. 139
  3. 223
  4. 161
  5. 191
  6. 183
  7. 150
  8. 156
  9. 183
  10. 245
  11. 223
  12. 209
  13. 139
  14. 274
  15. 194
  16. 253
  17. 263
  18. 187
  19. 174
  20. 194
  21. 122
  22. 179
  23. 126
  24. 203
  25. 166
  26. 212
  27. 153
  28. 172
  29. 210
  30. 268
  31. 103
  32. 210
  33. 208
  34. 186
  35. 118
  36. 256
  37. 183
  38. 281
  39. 215
  40. 84

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