← Same-change subtraction lesson New set →

Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 269 · 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. 1.463 − 66 =
  2. 2.223 − 17 =
  3. 3.380 − 99 =
  4. 4.186 − 38 =
  5. 5.141 − 98 =
  6. 6.357 − 26 =
  7. 7.284 − 48 =
  8. 8.587 − 59 =
  9. 9.554 − 68 =
  10. 10.545 − 37 =
  11. 11.563 − 98 =
  12. 12.511 − 37 =
  13. 13.71 − 17 =
  14. 14.124 − 17 =
  15. 15.402 − 27 =
  16. 16.579 − 56 =
  17. 17.503 − 97 =
  18. 18.307 − 37 =
  19. 19.560 − 69 =
  20. 20.310 − 67 =
  21. 21.572 − 78 =
  22. 22.507 − 89 =
  23. 23.181 − 39 =
  24. 24.400 − 88 =
  25. 25.548 − 77 =
  26. 26.323 − 26 =
  27. 27.404 − 58 =
  28. 28.394 − 26 =
  29. 29.389 − 88 =
  30. 30.292 − 56 =
  31. 31.282 − 98 =
  32. 32.537 − 38 =
  33. 33.585 − 77 =
  34. 34.289 − 19 =
  35. 35.522 − 36 =
  36. 36.538 − 86 =
  37. 37.242 − 69 =
  38. 38.209 − 69 =
  39. 39.383 − 99 =
  40. 40.334 − 37 =

Answer key

  1. 397
  2. 206
  3. 281
  4. 148
  5. 43
  6. 331
  7. 236
  8. 528
  9. 486
  10. 508
  11. 465
  12. 474
  13. 54
  14. 107
  15. 375
  16. 523
  17. 406
  18. 270
  19. 491
  20. 243
  21. 494
  22. 418
  23. 142
  24. 312
  25. 471
  26. 297
  27. 346
  28. 368
  29. 301
  30. 236
  31. 184
  32. 499
  33. 508
  34. 270
  35. 486
  36. 452
  37. 173
  38. 140
  39. 284
  40. 297

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