← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 31 · 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. 1.33 + 69 + 18 + 24 =
  2. 2.27 + 65 + 79 + 65 =
  3. 3.33 + 88 + 35 + 77 =
  4. 4.69 + 33 + 13 + 33 =
  5. 5.87 + 64 + 23 + 77 =
  6. 6.74 + 13 + 77 + 23 =
  7. 7.16 + 28 + 12 + 24 =
  8. 8.13 + 56 + 20 + 30 =
  9. 9.42 + 77 + 30 + 76 =
  10. 10.87 + 25 + 69 + 87 =
  11. 11.51 + 86 + 20 + 75 =
  12. 12.55 + 61 + 85 + 27 =
  13. 13.17 + 22 + 85 + 31 =
  14. 14.67 + 82 + 77 + 39 =
  15. 15.20 + 73 + 21 + 63 =
  16. 16.78 + 74 + 81 + 15 =
  17. 17.68 + 87 + 26 + 18 =
  18. 18.66 + 20 + 78 + 74 =
  19. 19.36 + 18 + 13 + 11 =
  20. 20.25 + 79 + 80 + 69 =
  21. 21.63 + 31 + 71 + 56 =
  22. 22.81 + 29 + 71 + 16 =
  23. 23.72 + 56 + 49 + 12 =
  24. 24.16 + 19 + 73 + 69 =
  25. 25.82 + 42 + 30 + 17 =
  26. 26.89 + 23 + 60 + 41 =
  27. 27.61 + 85 + 25 + 29 =
  28. 28.64 + 26 + 73 + 32 =
  29. 29.89 + 71 + 80 + 37 =
  30. 30.80 + 81 + 11 + 64 =
  31. 31.37 + 38 + 55 + 55 =
  32. 32.63 + 58 + 82 + 82 =
  33. 33.25 + 41 + 11 + 13 =
  34. 34.13 + 60 + 36 + 82 =
  35. 35.33 + 69 + 37 + 29 =
  36. 36.26 + 68 + 76 + 44 =
  37. 37.15 + 78 + 13 + 65 =
  38. 38.76 + 85 + 11 + 69 =
  39. 39.47 + 81 + 51 + 83 =
  40. 40.25 + 20 + 38 + 78 =

Answer key

  1. 144
  2. 236
  3. 233
  4. 148
  5. 251
  6. 187
  7. 80
  8. 119
  9. 225
  10. 268
  11. 232
  12. 228
  13. 155
  14. 265
  15. 177
  16. 248
  17. 199
  18. 238
  19. 78
  20. 253
  21. 221
  22. 197
  23. 189
  24. 177
  25. 171
  26. 213
  27. 200
  28. 195
  29. 277
  30. 236
  31. 185
  32. 285
  33. 90
  34. 191
  35. 168
  36. 214
  37. 171
  38. 241
  39. 262
  40. 161

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths