← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 431 · 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. 1.50 + 25 + 74 + 18 =
  2. 2.14 + 57 + 36 + 36 =
  3. 3.44 + 78 + 77 + 69 =
  4. 4.72 + 32 + 81 + 56 =
  5. 5.29 + 12 + 40 + 67 =
  6. 6.58 + 33 + 66 + 39 =
  7. 7.44 + 62 + 19 + 60 =
  8. 8.42 + 59 + 30 + 51 =
  9. 9.26 + 12 + 70 + 52 =
  10. 10.77 + 57 + 33 + 82 =
  11. 11.61 + 68 + 14 + 65 =
  12. 12.35 + 78 + 61 + 25 =
  13. 13.79 + 29 + 67 + 13 =
  14. 14.41 + 67 + 46 + 25 =
  15. 15.22 + 80 + 86 + 29 =
  16. 16.34 + 16 + 34 + 34 =
  17. 17.48 + 36 + 74 + 36 =
  18. 18.21 + 39 + 62 + 55 =
  19. 19.15 + 15 + 21 + 32 =
  20. 20.36 + 72 + 61 + 84 =
  21. 21.71 + 88 + 77 + 60 =
  22. 22.23 + 75 + 81 + 24 =
  23. 23.41 + 52 + 59 + 32 =
  24. 24.57 + 71 + 33 + 30 =
  25. 25.73 + 32 + 53 + 43 =
  26. 26.84 + 81 + 31 + 65 =
  27. 27.86 + 23 + 34 + 30 =
  28. 28.71 + 77 + 21 + 17 =
  29. 29.68 + 34 + 51 + 20 =
  30. 30.75 + 64 + 33 + 29 =
  31. 31.26 + 29 + 51 + 70 =
  32. 32.58 + 60 + 35 + 15 =
  33. 33.32 + 16 + 18 + 49 =
  34. 34.68 + 17 + 49 + 46 =
  35. 35.14 + 36 + 60 + 16 =
  36. 36.81 + 78 + 15 + 24 =
  37. 37.44 + 89 + 76 + 86 =
  38. 38.65 + 32 + 68 + 33 =
  39. 39.43 + 67 + 28 + 28 =
  40. 40.88 + 85 + 44 + 50 =

Answer key

  1. 167
  2. 143
  3. 268
  4. 241
  5. 148
  6. 196
  7. 185
  8. 182
  9. 160
  10. 249
  11. 208
  12. 199
  13. 188
  14. 179
  15. 217
  16. 118
  17. 194
  18. 177
  19. 83
  20. 253
  21. 296
  22. 203
  23. 184
  24. 191
  25. 201
  26. 261
  27. 173
  28. 186
  29. 173
  30. 201
  31. 176
  32. 168
  33. 115
  34. 180
  35. 126
  36. 198
  37. 295
  38. 198
  39. 166
  40. 267

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