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Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 191 · 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. 1.13 + 18 + 33 + 76 =
  2. 2.33 + 50 + 37 + 72 =
  3. 3.81 + 80 + 76 + 15 =
  4. 4.44 + 81 + 86 + 72 =
  5. 5.34 + 88 + 49 + 86 =
  6. 6.29 + 63 + 39 + 81 =
  7. 7.74 + 79 + 49 + 78 =
  8. 8.38 + 82 + 14 + 13 =
  9. 9.13 + 13 + 59 + 26 =
  10. 10.44 + 18 + 12 + 39 =
  11. 11.85 + 23 + 62 + 54 =
  12. 12.69 + 28 + 38 + 59 =
  13. 13.38 + 28 + 37 + 33 =
  14. 14.83 + 20 + 36 + 24 =
  15. 15.32 + 39 + 81 + 45 =
  16. 16.86 + 20 + 44 + 51 =
  17. 17.12 + 55 + 77 + 39 =
  18. 18.70 + 33 + 71 + 82 =
  19. 19.55 + 33 + 64 + 26 =
  20. 20.45 + 51 + 85 + 78 =
  21. 21.12 + 65 + 78 + 82 =
  22. 22.69 + 22 + 22 + 89 =
  23. 23.41 + 19 + 88 + 64 =
  24. 24.49 + 79 + 11 + 60 =
  25. 25.82 + 27 + 27 + 71 =
  26. 26.49 + 41 + 65 + 87 =
  27. 27.32 + 14 + 38 + 34 =
  28. 28.27 + 24 + 70 + 22 =
  29. 29.59 + 51 + 52 + 12 =
  30. 30.82 + 78 + 32 + 83 =
  31. 31.57 + 79 + 42 + 70 =
  32. 32.52 + 64 + 27 + 56 =
  33. 33.38 + 19 + 28 + 14 =
  34. 34.48 + 80 + 65 + 70 =
  35. 35.31 + 42 + 29 + 41 =
  36. 36.20 + 69 + 72 + 44 =
  37. 37.71 + 32 + 61 + 20 =
  38. 38.79 + 15 + 35 + 58 =
  39. 39.65 + 77 + 13 + 12 =
  40. 40.27 + 86 + 39 + 60 =

Answer key

  1. 140
  2. 192
  3. 252
  4. 283
  5. 257
  6. 212
  7. 280
  8. 147
  9. 111
  10. 113
  11. 224
  12. 194
  13. 136
  14. 163
  15. 197
  16. 201
  17. 183
  18. 256
  19. 178
  20. 259
  21. 237
  22. 202
  23. 212
  24. 199
  25. 207
  26. 242
  27. 118
  28. 143
  29. 174
  30. 275
  31. 248
  32. 199
  33. 99
  34. 263
  35. 143
  36. 205
  37. 184
  38. 187
  39. 167
  40. 212

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