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Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 925 · 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. 1.38 + 72 + 86 + 76 =
  2. 2.57 + 48 + 23 + 27 =
  3. 3.75 + 87 + 48 + 86 =
  4. 4.27 + 19 + 68 + 34 =
  5. 5.61 + 48 + 74 + 38 =
  6. 6.74 + 42 + 24 + 34 =
  7. 7.46 + 44 + 16 + 31 =
  8. 8.46 + 23 + 25 + 69 =
  9. 9.22 + 70 + 20 + 45 =
  10. 10.26 + 86 + 45 + 28 =
  11. 11.22 + 52 + 88 + 52 =
  12. 12.31 + 84 + 38 + 59 =
  13. 13.33 + 36 + 40 + 63 =
  14. 14.13 + 58 + 38 + 44 =
  15. 15.56 + 85 + 28 + 74 =
  16. 16.19 + 13 + 30 + 38 =
  17. 17.50 + 55 + 82 + 68 =
  18. 18.74 + 65 + 32 + 64 =
  19. 19.17 + 72 + 82 + 11 =
  20. 20.45 + 74 + 89 + 25 =
  21. 21.43 + 48 + 36 + 66 =
  22. 22.53 + 24 + 66 + 30 =
  23. 23.66 + 30 + 32 + 66 =
  24. 24.16 + 13 + 28 + 72 =
  25. 25.13 + 19 + 82 + 70 =
  26. 26.77 + 37 + 89 + 89 =
  27. 27.38 + 87 + 85 + 58 =
  28. 28.61 + 87 + 56 + 85 =
  29. 29.33 + 21 + 23 + 72 =
  30. 30.78 + 44 + 23 + 28 =
  31. 31.19 + 51 + 85 + 19 =
  32. 32.66 + 55 + 22 + 88 =
  33. 33.14 + 88 + 67 + 63 =
  34. 34.22 + 39 + 70 + 36 =
  35. 35.89 + 33 + 49 + 43 =
  36. 36.51 + 37 + 84 + 56 =
  37. 37.12 + 31 + 61 + 29 =
  38. 38.20 + 16 + 28 + 27 =
  39. 39.72 + 13 + 57 + 19 =
  40. 40.80 + 88 + 23 + 81 =

Answer key

  1. 272
  2. 155
  3. 296
  4. 148
  5. 221
  6. 174
  7. 137
  8. 163
  9. 157
  10. 185
  11. 214
  12. 212
  13. 172
  14. 153
  15. 243
  16. 100
  17. 255
  18. 235
  19. 182
  20. 233
  21. 193
  22. 173
  23. 194
  24. 129
  25. 184
  26. 292
  27. 268
  28. 289
  29. 149
  30. 173
  31. 174
  32. 231
  33. 232
  34. 167
  35. 214
  36. 228
  37. 133
  38. 91
  39. 161
  40. 272

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