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Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 699 · 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. 1.11 + 27 + 39 + 17 =
  2. 2.30 + 66 + 41 + 86 =
  3. 3.75 + 77 + 88 + 41 =
  4. 4.51 + 39 + 73 + 84 =
  5. 5.48 + 27 + 49 + 28 =
  6. 6.66 + 24 + 14 + 82 =
  7. 7.40 + 70 + 59 + 56 =
  8. 8.52 + 89 + 79 + 28 =
  9. 9.27 + 66 + 49 + 75 =
  10. 10.36 + 69 + 32 + 69 =
  11. 11.39 + 88 + 51 + 73 =
  12. 12.51 + 49 + 26 + 27 =
  13. 13.17 + 82 + 19 + 88 =
  14. 14.83 + 50 + 62 + 74 =
  15. 15.73 + 41 + 20 + 36 =
  16. 16.51 + 28 + 27 + 68 =
  17. 17.44 + 89 + 30 + 33 =
  18. 18.80 + 14 + 37 + 22 =
  19. 19.57 + 75 + 82 + 29 =
  20. 20.38 + 37 + 81 + 29 =
  21. 21.52 + 30 + 15 + 37 =
  22. 22.14 + 51 + 86 + 50 =
  23. 23.23 + 83 + 60 + 75 =
  24. 24.88 + 54 + 67 + 72 =
  25. 25.48 + 22 + 87 + 84 =
  26. 26.76 + 39 + 56 + 51 =
  27. 27.11 + 35 + 88 + 77 =
  28. 28.68 + 57 + 16 + 62 =
  29. 29.59 + 60 + 23 + 52 =
  30. 30.79 + 57 + 85 + 15 =
  31. 31.79 + 23 + 48 + 20 =
  32. 32.71 + 28 + 15 + 86 =
  33. 33.25 + 73 + 13 + 78 =
  34. 34.27 + 22 + 19 + 41 =
  35. 35.14 + 14 + 61 + 19 =
  36. 36.31 + 53 + 16 + 27 =
  37. 37.58 + 12 + 84 + 67 =
  38. 38.59 + 20 + 69 + 63 =
  39. 39.28 + 43 + 15 + 80 =
  40. 40.17 + 59 + 76 + 39 =

Answer key

  1. 94
  2. 223
  3. 281
  4. 247
  5. 152
  6. 186
  7. 225
  8. 248
  9. 217
  10. 206
  11. 251
  12. 153
  13. 206
  14. 269
  15. 170
  16. 174
  17. 196
  18. 153
  19. 243
  20. 185
  21. 134
  22. 201
  23. 241
  24. 281
  25. 241
  26. 222
  27. 211
  28. 203
  29. 194
  30. 236
  31. 170
  32. 200
  33. 189
  34. 109
  35. 108
  36. 127
  37. 221
  38. 211
  39. 166
  40. 191

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