← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 328 · 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. 1.82 + 51 + 61 + 86 =
  2. 2.21 + 84 + 47 + 24 =
  3. 3.25 + 36 + 17 + 23 =
  4. 4.62 + 52 + 33 + 29 =
  5. 5.23 + 50 + 67 + 33 =
  6. 6.17 + 32 + 57 + 63 =
  7. 7.24 + 89 + 50 + 66 =
  8. 8.50 + 50 + 23 + 63 =
  9. 9.25 + 37 + 53 + 65 =
  10. 10.78 + 48 + 43 + 52 =
  11. 11.57 + 79 + 53 + 79 =
  12. 12.29 + 43 + 27 + 11 =
  13. 13.86 + 77 + 49 + 14 =
  14. 14.34 + 42 + 52 + 36 =
  15. 15.47 + 70 + 55 + 13 =
  16. 16.11 + 85 + 45 + 18 =
  17. 17.84 + 62 + 73 + 79 =
  18. 18.78 + 60 + 30 + 43 =
  19. 19.53 + 23 + 63 + 43 =
  20. 20.52 + 18 + 60 + 84 =
  21. 21.48 + 57 + 35 + 70 =
  22. 22.48 + 32 + 40 + 78 =
  23. 23.56 + 37 + 26 + 28 =
  24. 24.57 + 45 + 12 + 32 =
  25. 25.79 + 73 + 21 + 85 =
  26. 26.47 + 31 + 80 + 20 =
  27. 27.21 + 60 + 53 + 51 =
  28. 28.29 + 16 + 61 + 35 =
  29. 29.21 + 81 + 72 + 50 =
  30. 30.47 + 32 + 64 + 72 =
  31. 31.18 + 58 + 30 + 68 =
  32. 32.57 + 16 + 20 + 24 =
  33. 33.49 + 76 + 46 + 73 =
  34. 34.83 + 16 + 23 + 23 =
  35. 35.39 + 40 + 72 + 74 =
  36. 36.29 + 71 + 79 + 32 =
  37. 37.39 + 34 + 25 + 52 =
  38. 38.89 + 30 + 69 + 30 =
  39. 39.67 + 49 + 33 + 16 =
  40. 40.60 + 86 + 29 + 35 =

Answer key

  1. 280
  2. 176
  3. 101
  4. 176
  5. 173
  6. 169
  7. 229
  8. 186
  9. 180
  10. 221
  11. 268
  12. 110
  13. 226
  14. 164
  15. 185
  16. 159
  17. 298
  18. 211
  19. 182
  20. 214
  21. 210
  22. 198
  23. 147
  24. 146
  25. 258
  26. 178
  27. 185
  28. 141
  29. 224
  30. 215
  31. 174
  32. 117
  33. 244
  34. 145
  35. 225
  36. 211
  37. 150
  38. 218
  39. 165
  40. 210

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