← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 579 · 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. 1.73 + 65 + 52 + 50 =
  2. 2.15 + 86 + 15 + 18 =
  3. 3.19 + 20 + 22 + 18 =
  4. 4.62 + 16 + 15 + 60 =
  5. 5.29 + 40 + 29 + 30 =
  6. 6.83 + 73 + 81 + 82 =
  7. 7.86 + 48 + 76 + 77 =
  8. 8.16 + 43 + 59 + 37 =
  9. 9.66 + 53 + 14 + 31 =
  10. 10.70 + 64 + 69 + 58 =
  11. 11.36 + 34 + 62 + 36 =
  12. 12.14 + 30 + 58 + 38 =
  13. 13.49 + 47 + 18 + 16 =
  14. 14.73 + 57 + 37 + 21 =
  15. 15.76 + 48 + 15 + 17 =
  16. 16.80 + 15 + 41 + 60 =
  17. 17.34 + 71 + 20 + 69 =
  18. 18.27 + 62 + 55 + 82 =
  19. 19.27 + 28 + 87 + 18 =
  20. 20.30 + 87 + 87 + 71 =
  21. 21.26 + 64 + 66 + 37 =
  22. 22.25 + 14 + 65 + 82 =
  23. 23.37 + 53 + 46 + 75 =
  24. 24.86 + 81 + 15 + 73 =
  25. 25.66 + 29 + 30 + 18 =
  26. 26.70 + 79 + 77 + 77 =
  27. 27.86 + 31 + 58 + 38 =
  28. 28.49 + 22 + 46 + 86 =
  29. 29.62 + 59 + 17 + 36 =
  30. 30.77 + 46 + 21 + 42 =
  31. 31.33 + 44 + 30 + 75 =
  32. 32.51 + 66 + 51 + 37 =
  33. 33.47 + 36 + 85 + 64 =
  34. 34.40 + 13 + 70 + 60 =
  35. 35.61 + 78 + 31 + 15 =
  36. 36.14 + 62 + 33 + 23 =
  37. 37.64 + 62 + 34 + 14 =
  38. 38.79 + 65 + 34 + 26 =
  39. 39.53 + 33 + 66 + 57 =
  40. 40.60 + 80 + 84 + 23 =

Answer key

  1. 240
  2. 134
  3. 79
  4. 153
  5. 128
  6. 319
  7. 287
  8. 155
  9. 164
  10. 261
  11. 168
  12. 140
  13. 130
  14. 188
  15. 156
  16. 196
  17. 194
  18. 226
  19. 160
  20. 275
  21. 193
  22. 186
  23. 211
  24. 255
  25. 143
  26. 303
  27. 213
  28. 203
  29. 174
  30. 186
  31. 182
  32. 205
  33. 232
  34. 183
  35. 185
  36. 132
  37. 174
  38. 204
  39. 209
  40. 247

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