← Same-change subtraction lesson New set →

Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 210 · 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. 1.59 − 27 =
  2. 2.366 − 37 =
  3. 3.215 − 97 =
  4. 4.261 − 36 =
  5. 5.169 − 77 =
  6. 6.584 − 17 =
  7. 7.94 − 76 =
  8. 8.201 − 17 =
  9. 9.252 − 77 =
  10. 10.188 − 16 =
  11. 11.456 − 18 =
  12. 12.376 − 36 =
  13. 13.282 − 97 =
  14. 14.582 − 99 =
  15. 15.121 − 39 =
  16. 16.498 − 28 =
  17. 17.162 − 87 =
  18. 18.431 − 47 =
  19. 19.187 − 26 =
  20. 20.487 − 16 =
  21. 21.422 − 19 =
  22. 22.157 − 36 =
  23. 23.300 − 57 =
  24. 24.178 − 27 =
  25. 25.199 − 58 =
  26. 26.523 − 86 =
  27. 27.479 − 67 =
  28. 28.305 − 17 =
  29. 29.488 − 87 =
  30. 30.267 − 37 =
  31. 31.88 − 36 =
  32. 32.293 − 89 =
  33. 33.564 − 39 =
  34. 34.401 − 48 =
  35. 35.214 − 17 =
  36. 36.193 − 37 =
  37. 37.587 − 89 =
  38. 38.295 − 56 =
  39. 39.329 − 39 =
  40. 40.148 − 76 =

Answer key

  1. 32
  2. 329
  3. 118
  4. 225
  5. 92
  6. 567
  7. 18
  8. 184
  9. 175
  10. 172
  11. 438
  12. 340
  13. 185
  14. 483
  15. 82
  16. 470
  17. 75
  18. 384
  19. 161
  20. 471
  21. 403
  22. 121
  23. 243
  24. 151
  25. 141
  26. 437
  27. 412
  28. 288
  29. 401
  30. 230
  31. 52
  32. 204
  33. 525
  34. 353
  35. 197
  36. 156
  37. 498
  38. 239
  39. 290
  40. 72

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