← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 784 · 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. 1.70 + 23 + 44 + 14 =
  2. 2.70 + 39 + 46 + 83 =
  3. 3.62 + 81 + 52 + 21 =
  4. 4.61 + 31 + 16 + 59 =
  5. 5.32 + 17 + 55 + 26 =
  6. 6.36 + 58 + 83 + 59 =
  7. 7.45 + 63 + 26 + 67 =
  8. 8.33 + 48 + 76 + 24 =
  9. 9.88 + 89 + 13 + 45 =
  10. 10.51 + 54 + 46 + 70 =
  11. 11.82 + 29 + 74 + 88 =
  12. 12.64 + 87 + 24 + 41 =
  13. 13.82 + 25 + 81 + 56 =
  14. 14.42 + 19 + 51 + 84 =
  15. 15.71 + 17 + 15 + 75 =
  16. 16.43 + 86 + 46 + 57 =
  17. 17.85 + 83 + 89 + 88 =
  18. 18.39 + 28 + 70 + 55 =
  19. 19.56 + 20 + 74 + 80 =
  20. 20.83 + 42 + 37 + 78 =
  21. 21.86 + 85 + 48 + 38 =
  22. 22.79 + 84 + 71 + 89 =
  23. 23.29 + 76 + 21 + 67 =
  24. 24.37 + 79 + 34 + 73 =
  25. 25.21 + 56 + 33 + 58 =
  26. 26.87 + 15 + 61 + 39 =
  27. 27.73 + 29 + 29 + 67 =
  28. 28.60 + 48 + 24 + 82 =
  29. 29.45 + 11 + 62 + 62 =
  30. 30.35 + 56 + 82 + 65 =
  31. 31.76 + 57 + 66 + 28 =
  32. 32.33 + 27 + 74 + 62 =
  33. 33.60 + 23 + 70 + 55 =
  34. 34.21 + 62 + 25 + 49 =
  35. 35.51 + 35 + 44 + 85 =
  36. 36.60 + 42 + 61 + 63 =
  37. 37.42 + 68 + 18 + 85 =
  38. 38.12 + 44 + 70 + 82 =
  39. 39.37 + 71 + 80 + 54 =
  40. 40.37 + 57 + 59 + 61 =

Answer key

  1. 151
  2. 238
  3. 216
  4. 167
  5. 130
  6. 236
  7. 201
  8. 181
  9. 235
  10. 221
  11. 273
  12. 216
  13. 244
  14. 196
  15. 178
  16. 232
  17. 345
  18. 192
  19. 230
  20. 240
  21. 257
  22. 323
  23. 193
  24. 223
  25. 168
  26. 202
  27. 198
  28. 214
  29. 180
  30. 238
  31. 227
  32. 196
  33. 208
  34. 157
  35. 215
  36. 226
  37. 213
  38. 208
  39. 242
  40. 214

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