Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 167 · 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. 1.183 − 26 =
2. 2.123 − 58 =
3. 3.500 − 29 =
4. 4.124 − 66 =
5. 5.453 − 66 =
6. 6.499 − 79 =
7. 7.91 − 49 =
8. 8.191 − 48 =
9. 9.470 − 98 =
10. 10.463 − 29 =
11. 11.116 − 36 =
12. 12.597 − 67 =
13. 13.584 − 96 =
14. 14.566 − 59 =
15. 15.209 − 89 =
16. 16.325 − 57 =
17. 17.593 − 28 =
18. 18.125 − 58 =
19. 19.409 − 89 =
20. 20.592 − 37 =
21. 21.587 − 17 =
22. 22.596 − 56 =
23. 23.266 − 87 =
24. 24.161 − 88 =
25. 25.522 − 77 =
26. 26.364 − 56 =
27. 27.165 − 69 =
28. 28.243 − 27 =
29. 29.105 − 66 =
30. 30.151 − 18 =
31. 31.562 − 88 =
32. 32.295 − 79 =
33. 33.483 − 38 =
34. 34.466 − 17 =
35. 35.194 − 56 =
36. 36.238 − 47 =
37. 37.400 − 87 =
38. 38.263 − 76 =
39. 39.530 − 38 =
40. 40.446 − 27 =

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