← Same-change subtraction lesson New set →

Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 411 · 40 questions
TalentJR

The fast method (Shift both): How much makes the second number round? 68 needs 2 to make 70. Add that amount to BOTH numbers. Take away the round number.

NameDateTime takenScore ___ / 40
  1. 1.216 − 66 =
  2. 2.159 − 28 =
  3. 3.520 − 66 =
  4. 4.244 − 76 =
  5. 5.200 − 99 =
  6. 6.520 − 77 =
  7. 7.562 − 36 =
  8. 8.311 − 78 =
  9. 9.599 − 79 =
  10. 10.260 − 76 =
  11. 11.131 − 66 =
  12. 12.427 − 97 =
  13. 13.178 − 97 =
  14. 14.582 − 26 =
  15. 15.386 − 26 =
  16. 16.332 − 28 =
  17. 17.403 − 78 =
  18. 18.423 − 46 =
  19. 19.339 − 99 =
  20. 20.427 − 27 =
  21. 21.152 − 29 =
  22. 22.431 − 49 =
  23. 23.112 − 69 =
  24. 24.182 − 76 =
  25. 25.274 − 58 =
  26. 26.516 − 19 =
  27. 27.162 − 86 =
  28. 28.480 − 46 =
  29. 29.262 − 36 =
  30. 30.153 − 48 =
  31. 31.588 − 29 =
  32. 32.145 − 16 =
  33. 33.103 − 46 =
  34. 34.307 − 77 =
  35. 35.260 − 19 =
  36. 36.205 − 99 =
  37. 37.469 − 59 =
  38. 38.505 − 79 =
  39. 39.193 − 56 =
  40. 40.179 − 56 =

Answer key

  1. 150
  2. 131
  3. 454
  4. 168
  5. 101
  6. 443
  7. 526
  8. 233
  9. 520
  10. 184
  11. 65
  12. 330
  13. 81
  14. 556
  15. 360
  16. 304
  17. 325
  18. 377
  19. 240
  20. 400
  21. 123
  22. 382
  23. 43
  24. 106
  25. 216
  26. 497
  27. 76
  28. 434
  29. 226
  30. 105
  31. 559
  32. 129
  33. 57
  34. 230
  35. 241
  36. 106
  37. 410
  38. 426
  39. 137
  40. 123

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