Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 630 · 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. 1.268 − 56 =
2. 2.598 − 97 =
3. 3.296 − 89 =
4. 4.186 − 86 =
5. 5.215 − 26 =
6. 6.543 − 37 =
7. 7.144 − 17 =
8. 8.432 − 16 =
9. 9.583 − 17 =
10. 10.436 − 36 =
11. 11.279 − 47 =
12. 12.505 − 77 =
13. 13.397 − 16 =
14. 14.136 − 38 =
15. 15.281 − 86 =
16. 16.335 − 88 =
17. 17.464 − 18 =
18. 18.330 − 86 =
19. 19.297 − 76 =
20. 20.145 − 18 =
21. 21.363 − 49 =
22. 22.476 − 46 =
23. 23.490 − 88 =
24. 24.160 − 18 =
25. 25.148 − 46 =
26. 26.264 − 57 =
27. 27.108 − 28 =
28. 28.538 − 89 =
29. 29.360 − 68 =
30. 30.416 − 76 =
31. 31.165 − 39 =
32. 32.172 − 46 =
33. 33.546 − 77 =
34. 34.252 − 79 =
35. 35.391 − 68 =
36. 36.482 − 87 =
37. 37.350 − 98 =
38. 38.166 − 29 =
39. 39.459 − 78 =
40. 40.150 − 27 =

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