← Running totals lesson New set →

Mental Addition Worksheet

Speed calculation lesson 5: Running totals · Set 944 · 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. 1.40 + 28 + 53 + 12 =
  2. 2.14 + 46 + 67 + 18 =
  3. 3.30 + 56 + 54 + 50 =
  4. 4.17 + 60 + 48 + 33 =
  5. 5.29 + 82 + 21 + 39 =
  6. 6.58 + 70 + 17 + 24 =
  7. 7.86 + 11 + 47 + 87 =
  8. 8.12 + 31 + 42 + 70 =
  9. 9.67 + 72 + 85 + 44 =
  10. 10.52 + 88 + 72 + 28 =
  11. 11.41 + 49 + 74 + 40 =
  12. 12.88 + 54 + 16 + 61 =
  13. 13.12 + 81 + 23 + 78 =
  14. 14.89 + 28 + 83 + 30 =
  15. 15.81 + 52 + 82 + 40 =
  16. 16.30 + 32 + 58 + 45 =
  17. 17.22 + 38 + 20 + 89 =
  18. 18.43 + 11 + 21 + 73 =
  19. 19.48 + 27 + 63 + 25 =
  20. 20.85 + 32 + 30 + 55 =
  21. 21.33 + 76 + 53 + 35 =
  22. 22.36 + 59 + 25 + 13 =
  23. 23.60 + 28 + 62 + 78 =
  24. 24.16 + 86 + 37 + 70 =
  25. 25.27 + 76 + 38 + 82 =
  26. 26.58 + 17 + 46 + 18 =
  27. 27.87 + 77 + 37 + 38 =
  28. 28.15 + 11 + 52 + 12 =
  29. 29.69 + 31 + 53 + 43 =
  30. 30.51 + 13 + 24 + 25 =
  31. 31.71 + 37 + 67 + 79 =
  32. 32.14 + 12 + 74 + 38 =
  33. 33.11 + 31 + 36 + 55 =
  34. 34.58 + 39 + 41 + 86 =
  35. 35.12 + 21 + 75 + 51 =
  36. 36.86 + 24 + 28 + 51 =
  37. 37.20 + 20 + 45 + 26 =
  38. 38.14 + 16 + 59 + 48 =
  39. 39.28 + 62 + 75 + 66 =
  40. 40.43 + 22 + 19 + 16 =

Answer key

  1. 133
  2. 145
  3. 190
  4. 158
  5. 171
  6. 169
  7. 231
  8. 155
  9. 268
  10. 240
  11. 204
  12. 219
  13. 194
  14. 230
  15. 255
  16. 165
  17. 169
  18. 148
  19. 163
  20. 202
  21. 197
  22. 133
  23. 228
  24. 209
  25. 223
  26. 139
  27. 239
  28. 90
  29. 196
  30. 113
  31. 254
  32. 138
  33. 133
  34. 224
  35. 159
  36. 189
  37. 111
  38. 137
  39. 231
  40. 100

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