← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 26 · 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. 1.19 + 20 + 73 + 72 =
  2. 2.55 + 13 + 79 + 21 =
  3. 3.63 + 28 + 58 + 26 =
  4. 4.84 + 15 + 12 + 23 =
  5. 5.64 + 19 + 34 + 47 =
  6. 6.54 + 68 + 30 + 33 =
  7. 7.70 + 27 + 73 + 13 =
  8. 8.22 + 87 + 52 + 72 =
  9. 9.46 + 59 + 75 + 40 =
  10. 10.22 + 16 + 59 + 30 =
  11. 11.12 + 23 + 17 + 46 =
  12. 12.59 + 11 + 73 + 12 =
  13. 13.38 + 43 + 24 + 30 =
  14. 14.25 + 47 + 18 + 68 =
  15. 15.77 + 65 + 58 + 29 =
  16. 16.26 + 44 + 46 + 40 =
  17. 17.26 + 50 + 61 + 80 =
  18. 18.39 + 82 + 26 + 18 =
  19. 19.40 + 28 + 66 + 22 =
  20. 20.88 + 32 + 55 + 42 =
  21. 21.70 + 75 + 81 + 17 =
  22. 22.33 + 41 + 57 + 80 =
  23. 23.47 + 59 + 14 + 64 =
  24. 24.58 + 41 + 24 + 34 =
  25. 25.46 + 88 + 71 + 31 =
  26. 26.18 + 26 + 19 + 82 =
  27. 27.46 + 37 + 15 + 67 =
  28. 28.56 + 84 + 89 + 59 =
  29. 29.65 + 49 + 88 + 75 =
  30. 30.75 + 30 + 11 + 14 =
  31. 31.33 + 55 + 82 + 74 =
  32. 32.24 + 31 + 21 + 34 =
  33. 33.41 + 47 + 23 + 77 =
  34. 34.27 + 87 + 58 + 22 =
  35. 35.74 + 29 + 13 + 56 =
  36. 36.63 + 36 + 73 + 76 =
  37. 37.79 + 80 + 89 + 29 =
  38. 38.23 + 18 + 40 + 60 =
  39. 39.75 + 27 + 25 + 32 =
  40. 40.54 + 66 + 24 + 88 =

Answer key

  1. 184
  2. 168
  3. 175
  4. 134
  5. 164
  6. 185
  7. 183
  8. 233
  9. 220
  10. 127
  11. 98
  12. 155
  13. 135
  14. 158
  15. 229
  16. 156
  17. 217
  18. 165
  19. 156
  20. 217
  21. 243
  22. 211
  23. 184
  24. 157
  25. 236
  26. 145
  27. 165
  28. 288
  29. 277
  30. 130
  31. 244
  32. 110
  33. 188
  34. 194
  35. 172
  36. 248
  37. 277
  38. 141
  39. 159
  40. 232

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