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Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 156 · 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. 1.44 + 69 + 55 + 46 =
  2. 2.67 + 83 + 48 + 55 =
  3. 3.35 + 22 + 26 + 46 =
  4. 4.81 + 12 + 61 + 21 =
  5. 5.29 + 17 + 65 + 78 =
  6. 6.31 + 42 + 25 + 85 =
  7. 7.43 + 37 + 67 + 39 =
  8. 8.73 + 27 + 45 + 55 =
  9. 9.15 + 27 + 83 + 68 =
  10. 10.20 + 54 + 89 + 42 =
  11. 11.19 + 57 + 57 + 24 =
  12. 12.26 + 48 + 54 + 41 =
  13. 13.24 + 72 + 28 + 34 =
  14. 14.29 + 53 + 25 + 76 =
  15. 15.65 + 17 + 75 + 84 =
  16. 16.87 + 26 + 53 + 12 =
  17. 17.28 + 66 + 39 + 23 =
  18. 18.84 + 56 + 31 + 45 =
  19. 19.80 + 51 + 81 + 82 =
  20. 20.74 + 59 + 21 + 82 =
  21. 21.22 + 15 + 51 + 68 =
  22. 22.35 + 87 + 60 + 70 =
  23. 23.12 + 17 + 30 + 28 =
  24. 24.59 + 45 + 72 + 79 =
  25. 25.79 + 88 + 72 + 74 =
  26. 26.59 + 28 + 16 + 64 =
  27. 27.29 + 60 + 16 + 20 =
  28. 28.78 + 82 + 17 + 53 =
  29. 29.34 + 22 + 38 + 55 =
  30. 30.31 + 44 + 85 + 35 =
  31. 31.85 + 40 + 57 + 14 =
  32. 32.78 + 19 + 53 + 78 =
  33. 33.75 + 69 + 41 + 50 =
  34. 34.28 + 14 + 80 + 36 =
  35. 35.35 + 87 + 28 + 20 =
  36. 36.58 + 34 + 65 + 22 =
  37. 37.42 + 17 + 81 + 34 =
  38. 38.65 + 53 + 41 + 66 =
  39. 39.85 + 14 + 13 + 44 =
  40. 40.31 + 57 + 13 + 58 =

Answer key

  1. 214
  2. 253
  3. 129
  4. 175
  5. 189
  6. 183
  7. 186
  8. 200
  9. 193
  10. 205
  11. 157
  12. 169
  13. 158
  14. 183
  15. 241
  16. 178
  17. 156
  18. 216
  19. 294
  20. 236
  21. 156
  22. 252
  23. 87
  24. 255
  25. 313
  26. 167
  27. 125
  28. 230
  29. 149
  30. 195
  31. 196
  32. 228
  33. 235
  34. 158
  35. 170
  36. 179
  37. 174
  38. 225
  39. 156
  40. 159

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