← Same-change subtraction lesson New set →

Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 896 · 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. 1.313 − 76 =
  2. 2.204 − 77 =
  3. 3.307 − 86 =
  4. 4.119 − 87 =
  5. 5.141 − 48 =
  6. 6.464 − 36 =
  7. 7.180 − 98 =
  8. 8.350 − 38 =
  9. 9.453 − 76 =
  10. 10.475 − 86 =
  11. 11.92 − 87 =
  12. 12.264 − 36 =
  13. 13.264 − 26 =
  14. 14.104 − 58 =
  15. 15.267 − 26 =
  16. 16.179 − 98 =
  17. 17.456 − 76 =
  18. 18.244 − 89 =
  19. 19.259 − 99 =
  20. 20.395 − 39 =
  21. 21.394 − 67 =
  22. 22.490 − 46 =
  23. 23.204 − 67 =
  24. 24.323 − 69 =
  25. 25.407 − 99 =
  26. 26.367 − 46 =
  27. 27.205 − 97 =
  28. 28.277 − 66 =
  29. 29.532 − 78 =
  30. 30.125 − 77 =
  31. 31.308 − 29 =
  32. 32.96 − 68 =
  33. 33.416 − 16 =
  34. 34.202 − 38 =
  35. 35.70 − 58 =
  36. 36.253 − 57 =
  37. 37.449 − 18 =
  38. 38.421 − 96 =
  39. 39.87 − 58 =
  40. 40.60 − 46 =

Answer key

  1. 237
  2. 127
  3. 221
  4. 32
  5. 93
  6. 428
  7. 82
  8. 312
  9. 377
  10. 389
  11. 5
  12. 228
  13. 238
  14. 46
  15. 241
  16. 81
  17. 380
  18. 155
  19. 160
  20. 356
  21. 327
  22. 444
  23. 137
  24. 254
  25. 308
  26. 321
  27. 108
  28. 211
  29. 454
  30. 48
  31. 279
  32. 28
  33. 400
  34. 164
  35. 12
  36. 196
  37. 431
  38. 325
  39. 29
  40. 14

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