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Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 356 · 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. 1.85 + 73 + 32 + 54 =
  2. 2.16 + 42 + 59 + 30 =
  3. 3.18 + 64 + 66 + 86 =
  4. 4.73 + 15 + 24 + 62 =
  5. 5.52 + 27 + 66 + 50 =
  6. 6.84 + 26 + 58 + 21 =
  7. 7.33 + 42 + 67 + 29 =
  8. 8.83 + 18 + 55 + 55 =
  9. 9.35 + 51 + 72 + 54 =
  10. 10.30 + 50 + 37 + 46 =
  11. 11.74 + 19 + 17 + 46 =
  12. 12.43 + 89 + 30 + 85 =
  13. 13.32 + 27 + 50 + 85 =
  14. 14.73 + 54 + 26 + 77 =
  15. 15.44 + 72 + 19 + 42 =
  16. 16.26 + 21 + 72 + 46 =
  17. 17.18 + 24 + 30 + 17 =
  18. 18.32 + 34 + 54 + 88 =
  19. 19.68 + 68 + 70 + 56 =
  20. 20.68 + 43 + 49 + 15 =
  21. 21.33 + 16 + 53 + 27 =
  22. 22.71 + 11 + 35 + 17 =
  23. 23.85 + 54 + 54 + 33 =
  24. 24.11 + 50 + 48 + 21 =
  25. 25.79 + 66 + 73 + 23 =
  26. 26.84 + 29 + 85 + 20 =
  27. 27.49 + 64 + 33 + 78 =
  28. 28.78 + 14 + 14 + 19 =
  29. 29.60 + 39 + 59 + 20 =
  30. 30.83 + 11 + 28 + 80 =
  31. 31.20 + 53 + 19 + 83 =
  32. 32.25 + 41 + 88 + 68 =
  33. 33.43 + 65 + 14 + 71 =
  34. 34.71 + 18 + 57 + 11 =
  35. 35.13 + 60 + 62 + 12 =
  36. 36.88 + 25 + 35 + 26 =
  37. 37.78 + 60 + 56 + 34 =
  38. 38.60 + 44 + 57 + 57 =
  39. 39.13 + 57 + 69 + 28 =
  40. 40.16 + 56 + 61 + 72 =

Answer key

  1. 244
  2. 147
  3. 234
  4. 174
  5. 195
  6. 189
  7. 171
  8. 211
  9. 212
  10. 163
  11. 156
  12. 247
  13. 194
  14. 230
  15. 177
  16. 165
  17. 89
  18. 208
  19. 262
  20. 175
  21. 129
  22. 134
  23. 226
  24. 130
  25. 241
  26. 218
  27. 224
  28. 125
  29. 178
  30. 202
  31. 175
  32. 222
  33. 193
  34. 157
  35. 147
  36. 174
  37. 228
  38. 218
  39. 167
  40. 205

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