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Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 834 · 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. 1.48 + 23 + 49 + 58 =
  2. 2.70 + 60 + 46 + 13 =
  3. 3.39 + 24 + 22 + 26 =
  4. 4.45 + 69 + 82 + 34 =
  5. 5.47 + 12 + 24 + 48 =
  6. 6.59 + 85 + 31 + 12 =
  7. 7.58 + 59 + 13 + 23 =
  8. 8.19 + 11 + 15 + 26 =
  9. 9.22 + 75 + 20 + 88 =
  10. 10.56 + 31 + 23 + 21 =
  11. 11.71 + 26 + 46 + 73 =
  12. 12.18 + 84 + 74 + 80 =
  13. 13.63 + 31 + 29 + 75 =
  14. 14.21 + 14 + 82 + 20 =
  15. 15.47 + 40 + 89 + 58 =
  16. 16.19 + 26 + 65 + 34 =
  17. 17.60 + 46 + 27 + 14 =
  18. 18.53 + 40 + 61 + 25 =
  19. 19.41 + 23 + 69 + 80 =
  20. 20.59 + 64 + 18 + 87 =
  21. 21.73 + 18 + 21 + 79 =
  22. 22.37 + 84 + 31 + 55 =
  23. 23.72 + 48 + 25 + 58 =
  24. 24.71 + 56 + 13 + 72 =
  25. 25.38 + 29 + 26 + 68 =
  26. 26.69 + 23 + 32 + 19 =
  27. 27.16 + 59 + 69 + 61 =
  28. 28.68 + 17 + 37 + 63 =
  29. 29.81 + 40 + 76 + 28 =
  30. 30.77 + 70 + 86 + 77 =
  31. 31.74 + 58 + 23 + 65 =
  32. 32.25 + 17 + 20 + 56 =
  33. 33.48 + 31 + 88 + 76 =
  34. 34.48 + 71 + 22 + 68 =
  35. 35.88 + 23 + 81 + 37 =
  36. 36.39 + 57 + 46 + 78 =
  37. 37.83 + 55 + 23 + 27 =
  38. 38.19 + 65 + 89 + 51 =
  39. 39.83 + 76 + 22 + 83 =
  40. 40.22 + 66 + 86 + 79 =

Answer key

  1. 178
  2. 189
  3. 111
  4. 230
  5. 131
  6. 187
  7. 153
  8. 71
  9. 205
  10. 131
  11. 216
  12. 256
  13. 198
  14. 137
  15. 234
  16. 144
  17. 147
  18. 179
  19. 213
  20. 228
  21. 191
  22. 207
  23. 203
  24. 212
  25. 161
  26. 143
  27. 205
  28. 185
  29. 225
  30. 310
  31. 220
  32. 118
  33. 243
  34. 209
  35. 229
  36. 220
  37. 188
  38. 224
  39. 264
  40. 253

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