← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 554 · 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. 1.74 + 50 + 13 + 53 =
  2. 2.54 + 19 + 13 + 73 =
  3. 3.81 + 76 + 40 + 73 =
  4. 4.52 + 40 + 58 + 33 =
  5. 5.52 + 88 + 19 + 64 =
  6. 6.16 + 52 + 33 + 72 =
  7. 7.80 + 61 + 39 + 20 =
  8. 8.58 + 43 + 42 + 41 =
  9. 9.60 + 26 + 80 + 54 =
  10. 10.84 + 75 + 25 + 31 =
  11. 11.37 + 89 + 26 + 53 =
  12. 12.30 + 31 + 60 + 28 =
  13. 13.52 + 88 + 18 + 81 =
  14. 14.18 + 76 + 75 + 16 =
  15. 15.55 + 81 + 72 + 12 =
  16. 16.57 + 63 + 27 + 83 =
  17. 17.49 + 73 + 18 + 15 =
  18. 18.11 + 19 + 68 + 46 =
  19. 19.44 + 73 + 31 + 27 =
  20. 20.24 + 56 + 23 + 75 =
  21. 21.70 + 35 + 60 + 78 =
  22. 22.56 + 15 + 27 + 77 =
  23. 23.81 + 73 + 53 + 84 =
  24. 24.45 + 50 + 31 + 82 =
  25. 25.74 + 81 + 82 + 63 =
  26. 26.80 + 30 + 32 + 14 =
  27. 27.31 + 87 + 63 + 71 =
  28. 28.17 + 35 + 17 + 17 =
  29. 29.48 + 35 + 73 + 20 =
  30. 30.54 + 83 + 21 + 88 =
  31. 31.50 + 30 + 25 + 81 =
  32. 32.15 + 86 + 33 + 53 =
  33. 33.40 + 39 + 66 + 52 =
  34. 34.40 + 79 + 75 + 71 =
  35. 35.65 + 80 + 73 + 46 =
  36. 36.31 + 22 + 62 + 54 =
  37. 37.58 + 51 + 23 + 60 =
  38. 38.79 + 50 + 12 + 34 =
  39. 39.60 + 20 + 60 + 71 =
  40. 40.69 + 45 + 70 + 81 =

Answer key

  1. 190
  2. 159
  3. 270
  4. 183
  5. 223
  6. 173
  7. 200
  8. 184
  9. 220
  10. 215
  11. 205
  12. 149
  13. 239
  14. 185
  15. 220
  16. 230
  17. 155
  18. 144
  19. 175
  20. 178
  21. 243
  22. 175
  23. 291
  24. 208
  25. 300
  26. 156
  27. 252
  28. 86
  29. 176
  30. 246
  31. 186
  32. 187
  33. 197
  34. 265
  35. 264
  36. 169
  37. 192
  38. 175
  39. 211
  40. 265

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