Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 97 · 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. 1.388 − 26 =
2. 2.530 − 97 =
3. 3.359 − 69 =
4. 4.338 − 59 =
5. 5.504 − 59 =
6. 6.283 − 86 =
7. 7.444 − 87 =
8. 8.185 − 87 =
9. 9.127 − 76 =
10. 10.157 − 67 =
11. 11.390 − 26 =
12. 12.505 − 98 =
13. 13.475 − 67 =
14. 14.510 − 49 =
15. 15.486 − 99 =
16. 16.184 − 89 =
17. 17.243 − 96 =
18. 18.233 − 86 =
19. 19.343 − 39 =
20. 20.142 − 46 =
21. 21.486 − 78 =
22. 22.97 − 47 =
23. 23.126 − 29 =
24. 24.101 − 18 =
25. 25.152 − 59 =
26. 26.578 − 38 =
27. 27.172 − 28 =
28. 28.194 − 98 =
29. 29.368 − 19 =
30. 30.296 − 97 =
31. 31.535 − 58 =
32. 32.495 − 78 =
33. 33.267 − 77 =
34. 34.466 − 77 =
35. 35.273 − 89 =
36. 36.171 − 98 =
37. 37.527 − 39 =
38. 38.282 − 76 =
39. 39.563 − 58 =
40. 40.369 − 19 =

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