← Same-change subtraction lesson New set →

Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 795 · 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. 1.182 − 27 =
  2. 2.409 − 28 =
  3. 3.213 − 36 =
  4. 4.287 − 67 =
  5. 5.553 − 77 =
  6. 6.481 − 66 =
  7. 7.165 − 99 =
  8. 8.114 − 67 =
  9. 9.537 − 97 =
  10. 10.159 − 77 =
  11. 11.446 − 37 =
  12. 12.338 − 28 =
  13. 13.95 − 17 =
  14. 14.101 − 36 =
  15. 15.452 − 28 =
  16. 16.528 − 16 =
  17. 17.573 − 17 =
  18. 18.284 − 28 =
  19. 19.583 − 29 =
  20. 20.292 − 68 =
  21. 21.193 − 56 =
  22. 22.439 − 26 =
  23. 23.290 − 89 =
  24. 24.305 − 49 =
  25. 25.226 − 66 =
  26. 26.101 − 58 =
  27. 27.201 − 36 =
  28. 28.211 − 28 =
  29. 29.163 − 46 =
  30. 30.385 − 76 =
  31. 31.517 − 58 =
  32. 32.147 − 16 =
  33. 33.508 − 96 =
  34. 34.169 − 76 =
  35. 35.477 − 17 =
  36. 36.160 − 26 =
  37. 37.520 − 97 =
  38. 38.313 − 86 =
  39. 39.458 − 87 =
  40. 40.261 − 56 =

Answer key

  1. 155
  2. 381
  3. 177
  4. 220
  5. 476
  6. 415
  7. 66
  8. 47
  9. 440
  10. 82
  11. 409
  12. 310
  13. 78
  14. 65
  15. 424
  16. 512
  17. 556
  18. 256
  19. 554
  20. 224
  21. 137
  22. 413
  23. 201
  24. 256
  25. 160
  26. 43
  27. 165
  28. 183
  29. 117
  30. 309
  31. 459
  32. 131
  33. 412
  34. 93
  35. 460
  36. 134
  37. 423
  38. 227
  39. 371
  40. 205

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