← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 610 · 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. 1.45 + 83 + 52 + 18 =
  2. 2.12 + 37 + 15 + 35 =
  3. 3.20 + 41 + 55 + 55 =
  4. 4.13 + 27 + 72 + 18 =
  5. 5.33 + 35 + 44 + 38 =
  6. 6.27 + 25 + 86 + 63 =
  7. 7.13 + 43 + 51 + 40 =
  8. 8.58 + 14 + 38 + 25 =
  9. 9.89 + 43 + 46 + 20 =
  10. 10.37 + 25 + 25 + 52 =
  11. 11.67 + 42 + 72 + 71 =
  12. 12.72 + 15 + 17 + 30 =
  13. 13.48 + 52 + 12 + 11 =
  14. 14.19 + 70 + 19 + 57 =
  15. 15.20 + 61 + 34 + 73 =
  16. 16.20 + 45 + 12 + 18 =
  17. 17.71 + 42 + 36 + 35 =
  18. 18.84 + 23 + 42 + 59 =
  19. 19.85 + 26 + 52 + 83 =
  20. 20.55 + 18 + 63 + 42 =
  21. 21.73 + 32 + 46 + 11 =
  22. 22.67 + 76 + 61 + 81 =
  23. 23.71 + 80 + 84 + 82 =
  24. 24.21 + 88 + 77 + 54 =
  25. 25.82 + 38 + 22 + 54 =
  26. 26.18 + 64 + 70 + 41 =
  27. 27.54 + 25 + 24 + 13 =
  28. 28.14 + 22 + 23 + 14 =
  29. 29.14 + 42 + 87 + 43 =
  30. 30.19 + 47 + 84 + 69 =
  31. 31.80 + 32 + 58 + 57 =
  32. 32.33 + 34 + 57 + 39 =
  33. 33.36 + 32 + 60 + 63 =
  34. 34.30 + 63 + 12 + 33 =
  35. 35.23 + 41 + 84 + 57 =
  36. 36.49 + 55 + 89 + 84 =
  37. 37.81 + 76 + 29 + 48 =
  38. 38.77 + 84 + 80 + 12 =
  39. 39.76 + 55 + 41 + 24 =
  40. 40.41 + 19 + 65 + 76 =

Answer key

  1. 198
  2. 99
  3. 171
  4. 130
  5. 150
  6. 201
  7. 147
  8. 135
  9. 198
  10. 139
  11. 252
  12. 134
  13. 123
  14. 165
  15. 188
  16. 95
  17. 184
  18. 208
  19. 246
  20. 178
  21. 162
  22. 285
  23. 317
  24. 240
  25. 196
  26. 193
  27. 116
  28. 73
  29. 186
  30. 219
  31. 227
  32. 163
  33. 191
  34. 138
  35. 205
  36. 277
  37. 234
  38. 253
  39. 196
  40. 201

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