← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 559 · 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 + 37 + 34 + 64 =
  2. 2.11 + 87 + 80 + 14 =
  3. 3.88 + 16 + 56 + 56 =
  4. 4.38 + 25 + 14 + 25 =
  5. 5.83 + 63 + 57 + 53 =
  6. 6.63 + 60 + 45 + 78 =
  7. 7.43 + 44 + 89 + 55 =
  8. 8.56 + 18 + 84 + 22 =
  9. 9.61 + 12 + 77 + 68 =
  10. 10.62 + 45 + 43 + 65 =
  11. 11.74 + 54 + 64 + 80 =
  12. 12.14 + 47 + 88 + 38 =
  13. 13.42 + 17 + 27 + 80 =
  14. 14.24 + 61 + 26 + 85 =
  15. 15.46 + 62 + 77 + 24 =
  16. 16.63 + 13 + 41 + 27 =
  17. 17.23 + 58 + 36 + 64 =
  18. 18.73 + 33 + 79 + 81 =
  19. 19.89 + 40 + 85 + 63 =
  20. 20.52 + 52 + 82 + 22 =
  21. 21.88 + 72 + 13 + 36 =
  22. 22.27 + 42 + 80 + 14 =
  23. 23.72 + 29 + 35 + 79 =
  24. 24.40 + 15 + 48 + 75 =
  25. 25.84 + 59 + 73 + 75 =
  26. 26.19 + 50 + 60 + 84 =
  27. 27.15 + 20 + 52 + 54 =
  28. 28.12 + 81 + 15 + 20 =
  29. 29.15 + 16 + 14 + 63 =
  30. 30.44 + 14 + 39 + 15 =
  31. 31.74 + 81 + 46 + 25 =
  32. 32.87 + 46 + 32 + 21 =
  33. 33.20 + 20 + 16 + 40 =
  34. 34.88 + 81 + 38 + 48 =
  35. 35.23 + 43 + 27 + 54 =
  36. 36.83 + 20 + 41 + 28 =
  37. 37.34 + 78 + 81 + 12 =
  38. 38.70 + 86 + 24 + 36 =
  39. 39.79 + 88 + 40 + 47 =
  40. 40.87 + 22 + 38 + 31 =

Answer key

  1. 154
  2. 192
  3. 216
  4. 102
  5. 256
  6. 246
  7. 231
  8. 180
  9. 218
  10. 215
  11. 272
  12. 187
  13. 166
  14. 196
  15. 209
  16. 144
  17. 181
  18. 266
  19. 277
  20. 208
  21. 209
  22. 163
  23. 215
  24. 178
  25. 291
  26. 213
  27. 141
  28. 128
  29. 108
  30. 112
  31. 226
  32. 186
  33. 96
  34. 255
  35. 147
  36. 172
  37. 205
  38. 216
  39. 254
  40. 178

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