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Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 114 · 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. 1.60 + 14 + 13 + 72 =
  2. 2.16 + 23 + 77 + 61 =
  3. 3.59 + 28 + 31 + 49 =
  4. 4.29 + 60 + 40 + 34 =
  5. 5.68 + 51 + 81 + 80 =
  6. 6.82 + 58 + 40 + 76 =
  7. 7.21 + 33 + 40 + 55 =
  8. 8.11 + 56 + 48 + 38 =
  9. 9.37 + 61 + 50 + 48 =
  10. 10.16 + 52 + 48 + 82 =
  11. 11.87 + 81 + 58 + 14 =
  12. 12.74 + 13 + 76 + 74 =
  13. 13.18 + 30 + 35 + 64 =
  14. 14.33 + 26 + 25 + 43 =
  15. 15.88 + 59 + 17 + 11 =
  16. 16.26 + 68 + 87 + 80 =
  17. 17.38 + 58 + 36 + 70 =
  18. 18.65 + 34 + 30 + 83 =
  19. 19.35 + 11 + 77 + 29 =
  20. 20.60 + 76 + 29 + 87 =
  21. 21.66 + 84 + 20 + 66 =
  22. 22.84 + 21 + 46 + 73 =
  23. 23.25 + 85 + 11 + 36 =
  24. 24.84 + 13 + 77 + 27 =
  25. 25.78 + 69 + 86 + 13 =
  26. 26.18 + 82 + 86 + 24 =
  27. 27.33 + 89 + 16 + 47 =
  28. 28.38 + 59 + 74 + 20 =
  29. 29.20 + 14 + 72 + 12 =
  30. 30.65 + 21 + 84 + 64 =
  31. 31.49 + 15 + 43 + 36 =
  32. 32.34 + 65 + 75 + 28 =
  33. 33.30 + 42 + 19 + 41 =
  34. 34.60 + 82 + 58 + 31 =
  35. 35.35 + 81 + 11 + 33 =
  36. 36.24 + 63 + 59 + 25 =
  37. 37.51 + 38 + 63 + 86 =
  38. 38.65 + 58 + 72 + 57 =
  39. 39.18 + 85 + 53 + 42 =
  40. 40.19 + 49 + 43 + 17 =

Answer key

  1. 159
  2. 177
  3. 167
  4. 163
  5. 280
  6. 256
  7. 149
  8. 153
  9. 196
  10. 198
  11. 240
  12. 237
  13. 147
  14. 127
  15. 175
  16. 261
  17. 202
  18. 212
  19. 152
  20. 252
  21. 236
  22. 224
  23. 157
  24. 201
  25. 246
  26. 210
  27. 185
  28. 191
  29. 118
  30. 234
  31. 143
  32. 202
  33. 132
  34. 231
  35. 160
  36. 171
  37. 238
  38. 252
  39. 198
  40. 128

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