← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 109 · 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. 1.52 + 48 + 24 + 61 =
  2. 2.17 + 15 + 51 + 66 =
  3. 3.16 + 35 + 89 + 87 =
  4. 4.84 + 83 + 43 + 32 =
  5. 5.89 + 52 + 13 + 67 =
  6. 6.57 + 72 + 33 + 68 =
  7. 7.57 + 86 + 26 + 37 =
  8. 8.56 + 79 + 76 + 11 =
  9. 9.70 + 39 + 85 + 49 =
  10. 10.56 + 33 + 47 + 23 =
  11. 11.89 + 68 + 46 + 31 =
  12. 12.20 + 52 + 21 + 52 =
  13. 13.14 + 72 + 72 + 44 =
  14. 14.56 + 18 + 29 + 61 =
  15. 15.71 + 79 + 75 + 20 =
  16. 16.13 + 84 + 75 + 28 =
  17. 17.11 + 32 + 34 + 55 =
  18. 18.50 + 35 + 53 + 41 =
  19. 19.36 + 63 + 17 + 52 =
  20. 20.71 + 74 + 46 + 11 =
  21. 21.20 + 17 + 58 + 27 =
  22. 22.60 + 51 + 12 + 69 =
  23. 23.56 + 77 + 15 + 17 =
  24. 24.21 + 40 + 16 + 16 =
  25. 25.69 + 63 + 60 + 45 =
  26. 26.14 + 74 + 30 + 52 =
  27. 27.47 + 28 + 77 + 59 =
  28. 28.14 + 53 + 19 + 26 =
  29. 29.87 + 40 + 60 + 43 =
  30. 30.58 + 75 + 30 + 87 =
  31. 31.31 + 49 + 56 + 66 =
  32. 32.15 + 49 + 86 + 19 =
  33. 33.48 + 87 + 41 + 29 =
  34. 34.19 + 82 + 83 + 26 =
  35. 35.35 + 80 + 33 + 50 =
  36. 36.22 + 89 + 38 + 20 =
  37. 37.42 + 86 + 84 + 52 =
  38. 38.85 + 16 + 48 + 22 =
  39. 39.13 + 35 + 22 + 48 =
  40. 40.11 + 59 + 75 + 50 =

Answer key

  1. 185
  2. 149
  3. 227
  4. 242
  5. 221
  6. 230
  7. 206
  8. 222
  9. 243
  10. 159
  11. 234
  12. 145
  13. 202
  14. 164
  15. 245
  16. 200
  17. 132
  18. 179
  19. 168
  20. 202
  21. 122
  22. 192
  23. 165
  24. 93
  25. 237
  26. 170
  27. 211
  28. 112
  29. 230
  30. 250
  31. 202
  32. 169
  33. 205
  34. 210
  35. 198
  36. 169
  37. 264
  38. 171
  39. 118
  40. 195

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