Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 305 · 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. 1.290 − 48 =
2. 2.582 − 58 =
3. 3.161 − 67 =
4. 4.122 − 66 =
5. 5.536 − 88 =
6. 6.548 − 86 =
7. 7.590 − 27 =
8. 8.194 − 66 =
9. 9.328 − 57 =
10. 10.193 − 86 =
11. 11.365 − 18 =
12. 12.529 − 36 =
13. 13.130 − 18 =
14. 14.438 − 88 =
15. 15.593 − 69 =
16. 16.442 − 47 =
17. 17.252 − 67 =
18. 18.352 − 28 =
19. 19.128 − 97 =
20. 20.556 − 89 =
21. 21.117 − 36 =
22. 22.302 − 99 =
23. 23.197 − 16 =
24. 24.354 − 38 =
25. 25.253 − 29 =
26. 26.220 − 59 =
27. 27.423 − 58 =
28. 28.296 − 67 =
29. 29.90 − 59 =
30. 30.529 − 27 =
31. 31.390 − 87 =
32. 32.367 − 48 =
33. 33.438 − 78 =
34. 34.577 − 67 =
35. 35.478 − 37 =
36. 36.313 − 98 =
37. 37.517 − 77 =
38. 38.288 − 96 =
39. 39.311 − 19 =
40. 40.526 − 89 =

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