← Same-change subtraction lesson New set →

Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 980 · 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. 1.518 − 49 =
  2. 2.106 − 58 =
  3. 3.145 − 69 =
  4. 4.298 − 46 =
  5. 5.491 − 36 =
  6. 6.60 − 38 =
  7. 7.151 − 58 =
  8. 8.409 − 67 =
  9. 9.312 − 99 =
  10. 10.316 − 46 =
  11. 11.515 − 29 =
  12. 12.280 − 98 =
  13. 13.327 − 46 =
  14. 14.374 − 48 =
  15. 15.449 − 86 =
  16. 16.146 − 46 =
  17. 17.461 − 18 =
  18. 18.216 − 97 =
  19. 19.88 − 19 =
  20. 20.321 − 56 =
  21. 21.592 − 18 =
  22. 22.372 − 39 =
  23. 23.478 − 16 =
  24. 24.115 − 89 =
  25. 25.271 − 77 =
  26. 26.561 − 17 =
  27. 27.152 − 56 =
  28. 28.210 − 38 =
  29. 29.192 − 88 =
  30. 30.481 − 76 =
  31. 31.95 − 79 =
  32. 32.64 − 57 =
  33. 33.345 − 77 =
  34. 34.392 − 59 =
  35. 35.140 − 96 =
  36. 36.262 − 37 =
  37. 37.140 − 87 =
  38. 38.576 − 19 =
  39. 39.181 − 88 =
  40. 40.180 − 96 =

Answer key

  1. 469
  2. 48
  3. 76
  4. 252
  5. 455
  6. 22
  7. 93
  8. 342
  9. 213
  10. 270
  11. 486
  12. 182
  13. 281
  14. 326
  15. 363
  16. 100
  17. 443
  18. 119
  19. 69
  20. 265
  21. 574
  22. 333
  23. 462
  24. 26
  25. 194
  26. 544
  27. 96
  28. 172
  29. 104
  30. 405
  31. 16
  32. 7
  33. 268
  34. 333
  35. 44
  36. 225
  37. 53
  38. 557
  39. 93
  40. 84

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