← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 66 · 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. 1.59 + 42 + 34 + 65 =
  2. 2.27 + 71 + 75 + 19 =
  3. 3.50 + 84 + 73 + 18 =
  4. 4.88 + 58 + 27 + 61 =
  5. 5.87 + 74 + 23 + 73 =
  6. 6.53 + 28 + 19 + 40 =
  7. 7.84 + 81 + 24 + 21 =
  8. 8.28 + 29 + 87 + 57 =
  9. 9.72 + 41 + 23 + 15 =
  10. 10.35 + 82 + 74 + 64 =
  11. 11.79 + 14 + 67 + 84 =
  12. 12.44 + 50 + 46 + 41 =
  13. 13.71 + 57 + 72 + 49 =
  14. 14.65 + 80 + 81 + 57 =
  15. 15.69 + 64 + 28 + 20 =
  16. 16.79 + 50 + 88 + 28 =
  17. 17.60 + 84 + 79 + 52 =
  18. 18.68 + 81 + 12 + 62 =
  19. 19.64 + 35 + 38 + 40 =
  20. 20.87 + 45 + 51 + 13 =
  21. 21.23 + 68 + 14 + 55 =
  22. 22.11 + 43 + 65 + 34 =
  23. 23.22 + 32 + 27 + 13 =
  24. 24.78 + 13 + 62 + 25 =
  25. 25.21 + 54 + 81 + 16 =
  26. 26.80 + 75 + 33 + 77 =
  27. 27.45 + 69 + 76 + 46 =
  28. 28.44 + 46 + 89 + 44 =
  29. 29.30 + 43 + 18 + 31 =
  30. 30.85 + 72 + 21 + 29 =
  31. 31.86 + 44 + 89 + 32 =
  32. 32.13 + 55 + 47 + 46 =
  33. 33.45 + 25 + 25 + 61 =
  34. 34.69 + 84 + 88 + 18 =
  35. 35.42 + 12 + 26 + 29 =
  36. 36.58 + 14 + 78 + 16 =
  37. 37.67 + 43 + 63 + 85 =
  38. 38.81 + 49 + 73 + 14 =
  39. 39.83 + 31 + 85 + 39 =
  40. 40.23 + 84 + 28 + 55 =

Answer key

  1. 200
  2. 192
  3. 225
  4. 234
  5. 257
  6. 140
  7. 210
  8. 201
  9. 151
  10. 255
  11. 244
  12. 181
  13. 249
  14. 283
  15. 181
  16. 245
  17. 275
  18. 223
  19. 177
  20. 196
  21. 160
  22. 153
  23. 94
  24. 178
  25. 172
  26. 265
  27. 236
  28. 223
  29. 122
  30. 207
  31. 251
  32. 161
  33. 156
  34. 259
  35. 109
  36. 166
  37. 258
  38. 217
  39. 238
  40. 190

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