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Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 313 · 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. 1.37 + 52 + 81 + 77 =
  2. 2.46 + 89 + 24 + 82 =
  3. 3.50 + 87 + 50 + 36 =
  4. 4.86 + 39 + 89 + 87 =
  5. 5.12 + 58 + 70 + 87 =
  6. 6.41 + 13 + 27 + 21 =
  7. 7.46 + 12 + 28 + 11 =
  8. 8.23 + 56 + 11 + 83 =
  9. 9.85 + 61 + 16 + 26 =
  10. 10.19 + 52 + 74 + 74 =
  11. 11.29 + 79 + 84 + 17 =
  12. 12.74 + 72 + 57 + 22 =
  13. 13.65 + 39 + 60 + 58 =
  14. 14.82 + 19 + 61 + 47 =
  15. 15.49 + 47 + 84 + 11 =
  16. 16.67 + 13 + 61 + 53 =
  17. 17.54 + 48 + 57 + 68 =
  18. 18.61 + 12 + 42 + 65 =
  19. 19.27 + 70 + 12 + 62 =
  20. 20.26 + 76 + 72 + 53 =
  21. 21.55 + 62 + 49 + 80 =
  22. 22.28 + 72 + 56 + 77 =
  23. 23.63 + 34 + 41 + 77 =
  24. 24.88 + 33 + 48 + 47 =
  25. 25.28 + 31 + 30 + 88 =
  26. 26.60 + 19 + 63 + 69 =
  27. 27.19 + 51 + 15 + 79 =
  28. 28.44 + 33 + 17 + 83 =
  29. 29.33 + 42 + 27 + 41 =
  30. 30.54 + 60 + 38 + 17 =
  31. 31.80 + 51 + 30 + 30 =
  32. 32.51 + 44 + 75 + 70 =
  33. 33.43 + 75 + 16 + 79 =
  34. 34.36 + 64 + 36 + 51 =
  35. 35.20 + 22 + 20 + 85 =
  36. 36.78 + 64 + 68 + 19 =
  37. 37.23 + 69 + 31 + 21 =
  38. 38.20 + 60 + 12 + 26 =
  39. 39.16 + 61 + 29 + 11 =
  40. 40.86 + 85 + 19 + 52 =

Answer key

  1. 247
  2. 241
  3. 223
  4. 301
  5. 227
  6. 102
  7. 97
  8. 173
  9. 188
  10. 219
  11. 209
  12. 225
  13. 222
  14. 209
  15. 191
  16. 194
  17. 227
  18. 180
  19. 171
  20. 227
  21. 246
  22. 233
  23. 215
  24. 216
  25. 177
  26. 211
  27. 164
  28. 177
  29. 143
  30. 169
  31. 191
  32. 240
  33. 213
  34. 187
  35. 147
  36. 229
  37. 144
  38. 118
  39. 117
  40. 242

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