← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 259 · 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. 1.29 + 15 + 18 + 75 =
  2. 2.39 + 17 + 48 + 87 =
  3. 3.38 + 40 + 46 + 40 =
  4. 4.46 + 29 + 89 + 72 =
  5. 5.38 + 63 + 14 + 71 =
  6. 6.70 + 67 + 35 + 17 =
  7. 7.38 + 44 + 27 + 15 =
  8. 8.18 + 15 + 63 + 36 =
  9. 9.70 + 32 + 61 + 87 =
  10. 10.55 + 64 + 12 + 38 =
  11. 11.21 + 40 + 81 + 60 =
  12. 12.37 + 45 + 58 + 55 =
  13. 13.89 + 48 + 78 + 59 =
  14. 14.14 + 65 + 33 + 89 =
  15. 15.80 + 23 + 55 + 53 =
  16. 16.13 + 65 + 17 + 31 =
  17. 17.56 + 25 + 75 + 45 =
  18. 18.30 + 42 + 11 + 44 =
  19. 19.66 + 73 + 83 + 44 =
  20. 20.86 + 48 + 63 + 19 =
  21. 21.58 + 43 + 27 + 73 =
  22. 22.36 + 13 + 44 + 42 =
  23. 23.31 + 21 + 12 + 41 =
  24. 24.25 + 55 + 47 + 11 =
  25. 25.14 + 22 + 13 + 47 =
  26. 26.71 + 37 + 57 + 74 =
  27. 27.78 + 55 + 27 + 88 =
  28. 28.28 + 16 + 63 + 34 =
  29. 29.65 + 35 + 22 + 28 =
  30. 30.82 + 72 + 13 + 59 =
  31. 31.50 + 58 + 63 + 47 =
  32. 32.27 + 89 + 13 + 54 =
  33. 33.31 + 64 + 34 + 29 =
  34. 34.58 + 74 + 16 + 45 =
  35. 35.70 + 68 + 31 + 17 =
  36. 36.13 + 59 + 31 + 80 =
  37. 37.41 + 24 + 26 + 13 =
  38. 38.83 + 43 + 59 + 23 =
  39. 39.77 + 68 + 87 + 82 =
  40. 40.80 + 55 + 69 + 80 =

Answer key

  1. 137
  2. 191
  3. 164
  4. 236
  5. 186
  6. 189
  7. 124
  8. 132
  9. 250
  10. 169
  11. 202
  12. 195
  13. 274
  14. 201
  15. 211
  16. 126
  17. 201
  18. 127
  19. 266
  20. 216
  21. 201
  22. 135
  23. 105
  24. 138
  25. 96
  26. 239
  27. 248
  28. 141
  29. 150
  30. 226
  31. 218
  32. 183
  33. 158
  34. 193
  35. 186
  36. 183
  37. 104
  38. 208
  39. 314
  40. 284

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