← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 669 · 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. 1.43 + 54 + 54 + 58 =
  2. 2.14 + 73 + 78 + 24 =
  3. 3.71 + 24 + 23 + 74 =
  4. 4.29 + 69 + 29 + 88 =
  5. 5.20 + 18 + 75 + 80 =
  6. 6.73 + 81 + 82 + 11 =
  7. 7.48 + 87 + 31 + 89 =
  8. 8.21 + 59 + 71 + 47 =
  9. 9.21 + 88 + 87 + 78 =
  10. 10.76 + 13 + 68 + 34 =
  11. 11.28 + 62 + 59 + 19 =
  12. 12.63 + 37 + 86 + 13 =
  13. 13.83 + 72 + 24 + 50 =
  14. 14.35 + 35 + 79 + 89 =
  15. 15.43 + 56 + 72 + 81 =
  16. 16.74 + 52 + 65 + 69 =
  17. 17.32 + 29 + 58 + 85 =
  18. 18.63 + 24 + 45 + 84 =
  19. 19.87 + 21 + 88 + 52 =
  20. 20.23 + 69 + 14 + 37 =
  21. 21.80 + 80 + 70 + 82 =
  22. 22.41 + 32 + 20 + 38 =
  23. 23.13 + 11 + 26 + 40 =
  24. 24.18 + 22 + 79 + 81 =
  25. 25.81 + 25 + 65 + 41 =
  26. 26.75 + 57 + 81 + 65 =
  27. 27.27 + 15 + 54 + 40 =
  28. 28.84 + 12 + 59 + 12 =
  29. 29.14 + 15 + 81 + 44 =
  30. 30.31 + 48 + 86 + 19 =
  31. 31.74 + 47 + 40 + 50 =
  32. 32.59 + 65 + 23 + 71 =
  33. 33.68 + 43 + 67 + 83 =
  34. 34.75 + 54 + 71 + 89 =
  35. 35.60 + 13 + 85 + 43 =
  36. 36.49 + 13 + 38 + 33 =
  37. 37.43 + 64 + 30 + 22 =
  38. 38.22 + 64 + 33 + 77 =
  39. 39.75 + 42 + 27 + 29 =
  40. 40.83 + 74 + 16 + 45 =

Answer key

  1. 209
  2. 189
  3. 192
  4. 215
  5. 193
  6. 247
  7. 255
  8. 198
  9. 274
  10. 191
  11. 168
  12. 199
  13. 229
  14. 238
  15. 252
  16. 260
  17. 204
  18. 216
  19. 248
  20. 143
  21. 312
  22. 131
  23. 90
  24. 200
  25. 212
  26. 278
  27. 136
  28. 167
  29. 154
  30. 184
  31. 211
  32. 218
  33. 261
  34. 289
  35. 201
  36. 133
  37. 159
  38. 196
  39. 173
  40. 218

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