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Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 368 · 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. 1.19 + 22 + 32 + 15 =
  2. 2.12 + 17 + 16 + 17 =
  3. 3.78 + 46 + 43 + 53 =
  4. 4.75 + 75 + 44 + 17 =
  5. 5.27 + 15 + 61 + 32 =
  6. 6.21 + 28 + 32 + 56 =
  7. 7.13 + 78 + 59 + 78 =
  8. 8.81 + 15 + 30 + 14 =
  9. 9.54 + 78 + 68 + 22 =
  10. 10.28 + 45 + 58 + 53 =
  11. 11.49 + 26 + 71 + 46 =
  12. 12.24 + 86 + 32 + 69 =
  13. 13.89 + 28 + 39 + 39 =
  14. 14.14 + 50 + 12 + 59 =
  15. 15.70 + 17 + 61 + 26 =
  16. 16.17 + 36 + 53 + 47 =
  17. 17.56 + 21 + 63 + 16 =
  18. 18.84 + 64 + 29 + 28 =
  19. 19.51 + 15 + 30 + 56 =
  20. 20.32 + 18 + 87 + 87 =
  21. 21.68 + 73 + 48 + 20 =
  22. 22.14 + 38 + 73 + 77 =
  23. 23.64 + 33 + 82 + 54 =
  24. 24.77 + 60 + 49 + 33 =
  25. 25.77 + 88 + 66 + 72 =
  26. 26.38 + 28 + 65 + 40 =
  27. 27.59 + 43 + 83 + 15 =
  28. 28.25 + 84 + 43 + 27 =
  29. 29.72 + 74 + 43 + 57 =
  30. 30.89 + 45 + 57 + 12 =
  31. 31.63 + 31 + 34 + 67 =
  32. 32.86 + 35 + 71 + 33 =
  33. 33.28 + 32 + 86 + 80 =
  34. 34.20 + 59 + 15 + 28 =
  35. 35.12 + 59 + 63 + 59 =
  36. 36.59 + 60 + 66 + 67 =
  37. 37.20 + 25 + 32 + 35 =
  38. 38.68 + 43 + 76 + 14 =
  39. 39.50 + 60 + 47 + 70 =
  40. 40.11 + 24 + 23 + 39 =

Answer key

  1. 88
  2. 62
  3. 220
  4. 211
  5. 135
  6. 137
  7. 228
  8. 140
  9. 222
  10. 184
  11. 192
  12. 211
  13. 195
  14. 135
  15. 174
  16. 153
  17. 156
  18. 205
  19. 152
  20. 224
  21. 209
  22. 202
  23. 233
  24. 219
  25. 303
  26. 171
  27. 200
  28. 179
  29. 246
  30. 203
  31. 195
  32. 225
  33. 226
  34. 122
  35. 193
  36. 252
  37. 112
  38. 201
  39. 227
  40. 97

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