← Same-change subtraction lesson New set →

Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 228 · 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. 1.207 − 16 =
  2. 2.599 − 16 =
  3. 3.520 − 77 =
  4. 4.394 − 69 =
  5. 5.60 − 59 =
  6. 6.175 − 66 =
  7. 7.296 − 76 =
  8. 8.594 − 28 =
  9. 9.414 − 26 =
  10. 10.226 − 76 =
  11. 11.572 − 79 =
  12. 12.115 − 99 =
  13. 13.581 − 16 =
  14. 14.184 − 86 =
  15. 15.305 − 46 =
  16. 16.316 − 78 =
  17. 17.327 − 16 =
  18. 18.248 − 97 =
  19. 19.587 − 58 =
  20. 20.53 − 26 =
  21. 21.260 − 88 =
  22. 22.436 − 39 =
  23. 23.473 − 96 =
  24. 24.452 − 26 =
  25. 25.118 − 58 =
  26. 26.451 − 16 =
  27. 27.165 − 97 =
  28. 28.239 − 97 =
  29. 29.599 − 66 =
  30. 30.362 − 36 =
  31. 31.128 − 57 =
  32. 32.188 − 77 =
  33. 33.53 − 19 =
  34. 34.326 − 48 =
  35. 35.440 − 98 =
  36. 36.554 − 78 =
  37. 37.591 − 49 =
  38. 38.77 − 56 =
  39. 39.381 − 36 =
  40. 40.295 − 67 =

Answer key

  1. 191
  2. 583
  3. 443
  4. 325
  5. 1
  6. 109
  7. 220
  8. 566
  9. 388
  10. 150
  11. 493
  12. 16
  13. 565
  14. 98
  15. 259
  16. 238
  17. 311
  18. 151
  19. 529
  20. 27
  21. 172
  22. 397
  23. 377
  24. 426
  25. 60
  26. 435
  27. 68
  28. 142
  29. 533
  30. 326
  31. 71
  32. 111
  33. 34
  34. 278
  35. 342
  36. 476
  37. 542
  38. 21
  39. 345
  40. 228

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