← Same-change subtraction lesson New set →

Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 258 · 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. 1.323 − 16 =
  2. 2.156 − 98 =
  3. 3.147 − 16 =
  4. 4.448 − 79 =
  5. 5.216 − 76 =
  6. 6.147 − 26 =
  7. 7.168 − 46 =
  8. 8.382 − 57 =
  9. 9.407 − 56 =
  10. 10.99 − 88 =
  11. 11.80 − 28 =
  12. 12.471 − 29 =
  13. 13.68 − 19 =
  14. 14.559 − 37 =
  15. 15.222 − 87 =
  16. 16.290 − 16 =
  17. 17.157 − 67 =
  18. 18.176 − 29 =
  19. 19.599 − 56 =
  20. 20.329 − 96 =
  21. 21.500 − 86 =
  22. 22.419 − 29 =
  23. 23.337 − 88 =
  24. 24.567 − 97 =
  25. 25.483 − 56 =
  26. 26.260 − 88 =
  27. 27.91 − 48 =
  28. 28.98 − 17 =
  29. 29.58 − 27 =
  30. 30.389 − 19 =
  31. 31.572 − 77 =
  32. 32.479 − 16 =
  33. 33.182 − 96 =
  34. 34.559 − 36 =
  35. 35.416 − 87 =
  36. 36.156 − 78 =
  37. 37.507 − 79 =
  38. 38.563 − 27 =
  39. 39.364 − 56 =
  40. 40.592 − 79 =

Answer key

  1. 307
  2. 58
  3. 131
  4. 369
  5. 140
  6. 121
  7. 122
  8. 325
  9. 351
  10. 11
  11. 52
  12. 442
  13. 49
  14. 522
  15. 135
  16. 274
  17. 90
  18. 147
  19. 543
  20. 233
  21. 414
  22. 390
  23. 249
  24. 470
  25. 427
  26. 172
  27. 43
  28. 81
  29. 31
  30. 370
  31. 495
  32. 463
  33. 86
  34. 523
  35. 329
  36. 78
  37. 428
  38. 536
  39. 308
  40. 513

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