← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 163 · 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. 1.38 + 83 + 64 + 41 =
  2. 2.80 + 56 + 85 + 45 =
  3. 3.31 + 43 + 59 + 65 =
  4. 4.76 + 21 + 67 + 54 =
  5. 5.45 + 60 + 12 + 37 =
  6. 6.72 + 84 + 75 + 23 =
  7. 7.24 + 18 + 88 + 24 =
  8. 8.23 + 11 + 29 + 57 =
  9. 9.13 + 89 + 51 + 76 =
  10. 10.82 + 55 + 33 + 27 =
  11. 11.83 + 15 + 76 + 31 =
  12. 12.52 + 50 + 50 + 16 =
  13. 13.28 + 79 + 86 + 83 =
  14. 14.80 + 24 + 69 + 22 =
  15. 15.66 + 75 + 75 + 17 =
  16. 16.22 + 19 + 23 + 31 =
  17. 17.46 + 16 + 23 + 26 =
  18. 18.33 + 19 + 67 + 33 =
  19. 19.25 + 20 + 41 + 85 =
  20. 20.36 + 79 + 44 + 71 =
  21. 21.28 + 52 + 42 + 18 =
  22. 22.31 + 21 + 85 + 60 =
  23. 23.88 + 68 + 65 + 29 =
  24. 24.62 + 27 + 61 + 50 =
  25. 25.16 + 60 + 81 + 53 =
  26. 26.24 + 79 + 65 + 54 =
  27. 27.73 + 29 + 36 + 13 =
  28. 28.39 + 78 + 80 + 88 =
  29. 29.11 + 59 + 23 + 58 =
  30. 30.21 + 48 + 43 + 62 =
  31. 31.24 + 66 + 31 + 29 =
  32. 32.63 + 57 + 18 + 37 =
  33. 33.85 + 52 + 25 + 32 =
  34. 34.26 + 16 + 53 + 35 =
  35. 35.87 + 55 + 67 + 25 =
  36. 36.34 + 47 + 77 + 15 =
  37. 37.23 + 72 + 82 + 70 =
  38. 38.68 + 47 + 65 + 21 =
  39. 39.56 + 45 + 39 + 11 =
  40. 40.63 + 55 + 85 + 46 =

Answer key

  1. 226
  2. 266
  3. 198
  4. 218
  5. 154
  6. 254
  7. 154
  8. 120
  9. 229
  10. 197
  11. 205
  12. 168
  13. 276
  14. 195
  15. 233
  16. 95
  17. 111
  18. 152
  19. 171
  20. 230
  21. 140
  22. 197
  23. 250
  24. 200
  25. 210
  26. 222
  27. 151
  28. 285
  29. 151
  30. 174
  31. 150
  32. 175
  33. 194
  34. 130
  35. 234
  36. 173
  37. 247
  38. 201
  39. 151
  40. 249

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