Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 181 · 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. 1.186 − 38 =
2. 2.387 − 97 =
3. 3.93 − 58 =
4. 4.120 − 87 =
5. 5.597 − 69 =
6. 6.295 − 66 =
7. 7.448 − 89 =
8. 8.335 − 76 =
9. 9.313 − 58 =
10. 10.360 − 49 =
11. 11.560 − 27 =
12. 12.353 − 77 =
13. 13.127 − 46 =
14. 14.586 − 28 =
15. 15.238 − 28 =
16. 16.96 − 66 =
17. 17.149 − 29 =
18. 18.538 − 46 =
19. 19.433 − 37 =
20. 20.393 − 36 =
21. 21.201 − 87 =
22. 22.277 − 97 =
23. 23.252 − 77 =
24. 24.153 − 18 =
25. 25.264 − 29 =
26. 26.538 − 68 =
27. 27.542 − 59 =
28. 28.328 − 17 =
29. 29.338 − 57 =
30. 30.440 − 19 =
31. 31.468 − 58 =
32. 32.113 − 37 =
33. 33.295 − 76 =
34. 34.368 − 28 =
35. 35.401 − 49 =
36. 36.492 − 58 =
37. 37.379 − 96 =
38. 38.122 − 66 =
39. 39.495 − 76 =
40. 40.194 − 98 =

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