← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 408 · 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. 1.32 + 74 + 27 + 50 =
  2. 2.51 + 29 + 81 + 14 =
  3. 3.56 + 11 + 47 + 43 =
  4. 4.29 + 64 + 84 + 88 =
  5. 5.26 + 32 + 55 + 74 =
  6. 6.88 + 50 + 70 + 30 =
  7. 7.35 + 14 + 34 + 48 =
  8. 8.81 + 81 + 66 + 89 =
  9. 9.36 + 30 + 36 + 43 =
  10. 10.44 + 62 + 12 + 40 =
  11. 11.27 + 49 + 50 + 31 =
  12. 12.70 + 89 + 23 + 27 =
  13. 13.34 + 68 + 60 + 51 =
  14. 14.60 + 58 + 15 + 32 =
  15. 15.19 + 51 + 69 + 65 =
  16. 16.62 + 36 + 41 + 18 =
  17. 17.75 + 58 + 26 + 75 =
  18. 18.16 + 81 + 32 + 51 =
  19. 19.46 + 40 + 44 + 71 =
  20. 20.21 + 29 + 12 + 80 =
  21. 21.36 + 18 + 34 + 84 =
  22. 22.54 + 80 + 54 + 61 =
  23. 23.53 + 42 + 11 + 50 =
  24. 24.11 + 54 + 70 + 85 =
  25. 25.51 + 20 + 72 + 41 =
  26. 26.42 + 28 + 81 + 45 =
  27. 27.50 + 18 + 88 + 85 =
  28. 28.67 + 77 + 75 + 60 =
  29. 29.20 + 12 + 65 + 27 =
  30. 30.41 + 21 + 36 + 80 =
  31. 31.51 + 21 + 35 + 33 =
  32. 32.13 + 82 + 66 + 61 =
  33. 33.25 + 27 + 51 + 20 =
  34. 34.55 + 65 + 25 + 39 =
  35. 35.60 + 44 + 55 + 15 =
  36. 36.19 + 30 + 56 + 66 =
  37. 37.46 + 53 + 46 + 59 =
  38. 38.22 + 89 + 63 + 72 =
  39. 39.44 + 19 + 88 + 80 =
  40. 40.62 + 84 + 15 + 22 =

Answer key

  1. 183
  2. 175
  3. 157
  4. 265
  5. 187
  6. 238
  7. 131
  8. 317
  9. 145
  10. 158
  11. 157
  12. 209
  13. 213
  14. 165
  15. 204
  16. 157
  17. 234
  18. 180
  19. 201
  20. 142
  21. 172
  22. 249
  23. 156
  24. 220
  25. 184
  26. 196
  27. 241
  28. 279
  29. 124
  30. 178
  31. 140
  32. 222
  33. 123
  34. 184
  35. 174
  36. 171
  37. 204
  38. 246
  39. 231
  40. 183

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