← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 539 · 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. 1.88 + 40 + 38 + 54 =
  2. 2.55 + 28 + 18 + 79 =
  3. 3.21 + 22 + 26 + 31 =
  4. 4.25 + 75 + 51 + 30 =
  5. 5.69 + 84 + 45 + 81 =
  6. 6.22 + 51 + 86 + 57 =
  7. 7.14 + 62 + 47 + 42 =
  8. 8.27 + 89 + 12 + 70 =
  9. 9.56 + 61 + 17 + 86 =
  10. 10.88 + 25 + 37 + 50 =
  11. 11.27 + 74 + 80 + 33 =
  12. 12.28 + 29 + 45 + 30 =
  13. 13.28 + 78 + 30 + 25 =
  14. 14.20 + 65 + 64 + 72 =
  15. 15.75 + 35 + 47 + 55 =
  16. 16.20 + 81 + 45 + 55 =
  17. 17.80 + 21 + 13 + 48 =
  18. 18.49 + 65 + 73 + 46 =
  19. 19.24 + 13 + 21 + 51 =
  20. 20.86 + 72 + 26 + 76 =
  21. 21.59 + 38 + 17 + 71 =
  22. 22.61 + 60 + 40 + 82 =
  23. 23.53 + 73 + 43 + 78 =
  24. 24.55 + 29 + 89 + 17 =
  25. 25.20 + 33 + 67 + 59 =
  26. 26.13 + 56 + 76 + 84 =
  27. 27.12 + 87 + 78 + 89 =
  28. 28.51 + 16 + 43 + 12 =
  29. 29.25 + 35 + 23 + 66 =
  30. 30.49 + 38 + 82 + 72 =
  31. 31.78 + 47 + 27 + 87 =
  32. 32.35 + 31 + 11 + 14 =
  33. 33.87 + 44 + 64 + 41 =
  34. 34.72 + 16 + 77 + 28 =
  35. 35.53 + 50 + 18 + 48 =
  36. 36.36 + 58 + 51 + 20 =
  37. 37.82 + 70 + 28 + 64 =
  38. 38.89 + 82 + 83 + 25 =
  39. 39.34 + 23 + 60 + 25 =
  40. 40.13 + 17 + 89 + 57 =

Answer key

  1. 220
  2. 180
  3. 100
  4. 181
  5. 279
  6. 216
  7. 165
  8. 198
  9. 220
  10. 200
  11. 214
  12. 132
  13. 161
  14. 221
  15. 212
  16. 201
  17. 162
  18. 233
  19. 109
  20. 260
  21. 185
  22. 243
  23. 247
  24. 190
  25. 179
  26. 229
  27. 266
  28. 122
  29. 149
  30. 241
  31. 239
  32. 91
  33. 236
  34. 193
  35. 169
  36. 165
  37. 244
  38. 279
  39. 142
  40. 176

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