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Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 697 · 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. 1.89 + 23 + 70 + 14 =
  2. 2.38 + 88 + 73 + 69 =
  3. 3.19 + 21 + 15 + 57 =
  4. 4.61 + 52 + 31 + 24 =
  5. 5.67 + 68 + 27 + 35 =
  6. 6.25 + 44 + 38 + 66 =
  7. 7.55 + 71 + 31 + 19 =
  8. 8.51 + 20 + 55 + 71 =
  9. 9.61 + 69 + 39 + 71 =
  10. 10.19 + 21 + 24 + 79 =
  11. 11.43 + 31 + 27 + 78 =
  12. 12.84 + 40 + 28 + 19 =
  13. 13.18 + 33 + 84 + 79 =
  14. 14.83 + 33 + 16 + 70 =
  15. 15.54 + 85 + 47 + 75 =
  16. 16.81 + 28 + 15 + 74 =
  17. 17.78 + 71 + 79 + 51 =
  18. 18.58 + 23 + 13 + 61 =
  19. 19.42 + 13 + 41 + 89 =
  20. 20.16 + 18 + 12 + 24 =
  21. 21.45 + 18 + 80 + 12 =
  22. 22.70 + 56 + 68 + 85 =
  23. 23.52 + 46 + 77 + 65 =
  24. 24.34 + 41 + 45 + 70 =
  25. 25.22 + 16 + 54 + 22 =
  26. 26.39 + 50 + 70 + 16 =
  27. 27.30 + 16 + 80 + 85 =
  28. 28.32 + 68 + 13 + 81 =
  29. 29.41 + 27 + 89 + 77 =
  30. 30.16 + 67 + 22 + 77 =
  31. 31.50 + 59 + 59 + 44 =
  32. 32.15 + 88 + 12 + 41 =
  33. 33.52 + 28 + 32 + 79 =
  34. 34.39 + 66 + 42 + 55 =
  35. 35.47 + 45 + 70 + 53 =
  36. 36.32 + 75 + 46 + 69 =
  37. 37.27 + 59 + 39 + 65 =
  38. 38.57 + 32 + 57 + 30 =
  39. 39.42 + 14 + 29 + 35 =
  40. 40.35 + 43 + 33 + 13 =

Answer key

  1. 196
  2. 268
  3. 112
  4. 168
  5. 197
  6. 173
  7. 176
  8. 197
  9. 240
  10. 143
  11. 179
  12. 171
  13. 214
  14. 202
  15. 261
  16. 198
  17. 279
  18. 155
  19. 185
  20. 70
  21. 155
  22. 279
  23. 240
  24. 190
  25. 114
  26. 175
  27. 211
  28. 194
  29. 234
  30. 182
  31. 212
  32. 156
  33. 191
  34. 202
  35. 215
  36. 222
  37. 190
  38. 176
  39. 120
  40. 124

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