Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 431 · 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. 1.324 − 59 =
2. 2.516 − 36 =
3. 3.452 − 16 =
4. 4.54 − 36 =
5. 5.493 − 57 =
6. 6.447 − 49 =
7. 7.448 − 69 =
8. 8.571 − 78 =
9. 9.471 − 38 =
10. 10.559 − 38 =
11. 11.359 − 36 =
12. 12.404 − 88 =
13. 13.226 − 67 =
14. 14.360 − 97 =
15. 15.82 − 68 =
16. 16.547 − 76 =
17. 17.560 − 89 =
18. 18.401 − 86 =
19. 19.168 − 66 =
20. 20.363 − 59 =
21. 21.264 − 67 =
22. 22.260 − 96 =
23. 23.337 − 19 =
24. 24.253 − 46 =
25. 25.175 − 36 =
26. 26.96 − 67 =
27. 27.178 − 18 =
28. 28.393 − 86 =
29. 29.285 − 38 =
30. 30.153 − 48 =
31. 31.427 − 39 =
32. 32.201 − 59 =
33. 33.481 − 56 =
34. 34.414 − 56 =
35. 35.122 − 16 =
36. 36.97 − 86 =
37. 37.233 − 29 =
38. 38.535 − 26 =
39. 39.69 − 18 =
40. 40.68 − 57 =

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