Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 250 · 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. 1.257 − 66 =
2. 2.425 − 36 =
3. 3.83 − 19 =
4. 4.162 − 49 =
5. 5.175 − 38 =
6. 6.147 − 18 =
7. 7.373 − 39 =
8. 8.362 − 87 =
9. 9.478 − 16 =
10. 10.130 − 37 =
11. 11.348 − 29 =
12. 12.548 − 36 =
13. 13.556 − 96 =
14. 14.533 − 26 =
15. 15.253 − 97 =
16. 16.534 − 49 =
17. 17.116 − 39 =
18. 18.381 − 26 =
19. 19.495 − 79 =
20. 20.573 − 69 =
21. 21.384 − 16 =
22. 22.496 − 16 =
23. 23.370 − 69 =
24. 24.211 − 48 =
25. 25.530 − 37 =
26. 26.565 − 58 =
27. 27.196 − 36 =
28. 28.167 − 69 =
29. 29.594 − 58 =
30. 30.391 − 19 =
31. 31.289 − 29 =
32. 32.570 − 87 =
33. 33.423 − 56 =
34. 34.487 − 97 =
35. 35.233 − 59 =
36. 36.205 − 36 =
37. 37.107 − 98 =
38. 38.157 − 78 =
39. 39.124 − 97 =
40. 40.288 − 38 =

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