Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 804 · 40 questions

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.

1. 1.138 − 19 =
2. 2.228 − 57 =
3. 3.455 − 99 =
4. 4.511 − 17 =
5. 5.356 − 99 =
6. 6.165 − 98 =
7. 7.359 − 79 =
8. 8.362 − 56 =
9. 9.386 − 26 =
10. 10.499 − 97 =
11. 11.354 − 27 =
12. 12.67 − 66 =
13. 13.416 − 26 =
14. 14.455 − 59 =
15. 15.565 − 76 =
16. 16.468 − 76 =
17. 17.172 − 68 =
18. 18.598 − 18 =
19. 19.406 − 16 =
20. 20.155 − 57 =
21. 21.102 − 97 =
22. 22.219 − 56 =
23. 23.210 − 48 =
24. 24.174 − 76 =
25. 25.366 − 78 =
26. 26.575 − 59 =
27. 27.368 − 56 =
28. 28.289 − 48 =
29. 29.176 − 17 =
30. 30.599 − 49 =
31. 31.360 − 97 =
32. 32.292 − 26 =
33. 33.447 − 67 =
34. 34.101 − 48 =
35. 35.227 − 38 =
36. 36.414 − 57 =
37. 37.274 − 56 =
38. 38.299 − 27 =
39. 39.93 − 38 =
40. 40.272 − 39 =

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