Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 837 · 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. 1.71 − 57 =
2. 2.341 − 39 =
3. 3.194 − 17 =
4. 4.109 − 67 =
5. 5.519 − 66 =
6. 6.322 − 36 =
7. 7.501 − 26 =
8. 8.563 − 47 =
9. 9.343 − 16 =
10. 10.99 − 66 =
11. 11.348 − 56 =
12. 12.525 − 26 =
13. 13.432 − 46 =
14. 14.542 − 16 =
15. 15.515 − 38 =
16. 16.492 − 67 =
17. 17.395 − 56 =
18. 18.152 − 79 =
19. 19.236 − 59 =
20. 20.549 − 77 =
21. 21.307 − 47 =
22. 22.377 − 68 =
23. 23.331 − 89 =
24. 24.335 − 99 =
25. 25.599 − 26 =
26. 26.498 − 36 =
27. 27.492 − 97 =
28. 28.122 − 26 =
29. 29.588 − 56 =
30. 30.274 − 76 =
31. 31.454 − 87 =
32. 32.62 − 57 =
33. 33.416 − 78 =
34. 34.302 − 38 =
35. 35.156 − 28 =
36. 36.103 − 37 =
37. 37.500 − 66 =
38. 38.154 − 19 =
39. 39.595 − 96 =
40. 40.544 − 48 =

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