Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 456 · 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. 1.460 − 87 =
2. 2.260 − 58 =
3. 3.399 − 68 =
4. 4.101 − 66 =
5. 5.177 − 76 =
6. 6.95 − 29 =
7. 7.171 − 67 =
8. 8.356 − 46 =
9. 9.309 − 78 =
10. 10.249 − 96 =
11. 11.493 − 96 =
12. 12.163 − 86 =
13. 13.407 − 27 =
14. 14.306 − 77 =
15. 15.182 − 38 =
16. 16.537 − 26 =
17. 17.278 − 67 =
18. 18.518 − 16 =
19. 19.574 − 37 =
20. 20.273 − 76 =
21. 21.210 − 27 =
22. 22.368 − 28 =
23. 23.380 − 17 =
24. 24.324 − 46 =
25. 25.549 − 57 =
26. 26.548 − 19 =
27. 27.598 − 79 =
28. 28.94 − 17 =
29. 29.366 − 97 =
30. 30.122 − 49 =
31. 31.430 − 56 =
32. 32.450 − 46 =
33. 33.207 − 87 =
34. 34.429 − 77 =
35. 35.579 − 68 =
36. 36.192 − 47 =
37. 37.274 − 77 =
38. 38.272 − 79 =
39. 39.233 − 39 =
40. 40.206 − 57 =

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