← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 151 · 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. 1.35 + 54 + 18 + 30 =
  2. 2.86 + 65 + 52 + 23 =
  3. 3.69 + 80 + 56 + 33 =
  4. 4.17 + 59 + 65 + 16 =
  5. 5.88 + 31 + 41 + 24 =
  6. 6.59 + 17 + 33 + 22 =
  7. 7.23 + 33 + 54 + 36 =
  8. 8.36 + 45 + 70 + 36 =
  9. 9.14 + 56 + 61 + 63 =
  10. 10.86 + 14 + 85 + 28 =
  11. 11.11 + 46 + 71 + 12 =
  12. 12.47 + 21 + 42 + 17 =
  13. 13.23 + 30 + 38 + 14 =
  14. 14.36 + 56 + 88 + 25 =
  15. 15.26 + 64 + 61 + 26 =
  16. 16.24 + 62 + 38 + 85 =
  17. 17.45 + 44 + 26 + 44 =
  18. 18.21 + 17 + 18 + 75 =
  19. 19.21 + 24 + 14 + 30 =
  20. 20.12 + 78 + 13 + 82 =
  21. 21.64 + 57 + 85 + 84 =
  22. 22.13 + 64 + 56 + 35 =
  23. 23.16 + 16 + 37 + 58 =
  24. 24.51 + 13 + 34 + 30 =
  25. 25.74 + 71 + 85 + 49 =
  26. 26.62 + 27 + 49 + 65 =
  27. 27.62 + 88 + 80 + 63 =
  28. 28.46 + 53 + 53 + 79 =
  29. 29.69 + 25 + 48 + 79 =
  30. 30.23 + 11 + 30 + 89 =
  31. 31.32 + 79 + 70 + 25 =
  32. 32.71 + 64 + 16 + 13 =
  33. 33.47 + 52 + 12 + 47 =
  34. 34.70 + 26 + 49 + 41 =
  35. 35.25 + 45 + 58 + 37 =
  36. 36.39 + 19 + 70 + 19 =
  37. 37.73 + 20 + 75 + 58 =
  38. 38.86 + 28 + 19 + 28 =
  39. 39.26 + 44 + 37 + 82 =
  40. 40.55 + 86 + 22 + 81 =

Answer key

  1. 137
  2. 226
  3. 238
  4. 157
  5. 184
  6. 131
  7. 146
  8. 187
  9. 194
  10. 213
  11. 140
  12. 127
  13. 105
  14. 205
  15. 177
  16. 209
  17. 159
  18. 131
  19. 89
  20. 185
  21. 290
  22. 168
  23. 127
  24. 128
  25. 279
  26. 203
  27. 293
  28. 231
  29. 221
  30. 153
  31. 206
  32. 164
  33. 158
  34. 186
  35. 165
  36. 147
  37. 226
  38. 161
  39. 189
  40. 244

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