Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 801 · 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. 1.499 − 39 =
2. 2.422 − 29 =
3. 3.357 − 19 =
4. 4.339 − 17 =
5. 5.246 − 76 =
6. 6.509 − 79 =
7. 7.416 − 66 =
8. 8.145 − 47 =
9. 9.542 − 59 =
10. 10.459 − 18 =
11. 11.159 − 96 =
12. 12.349 − 49 =
13. 13.370 − 89 =
14. 14.117 − 16 =
15. 15.323 − 56 =
16. 16.216 − 57 =
17. 17.568 − 47 =
18. 18.343 − 28 =
19. 19.498 − 67 =
20. 20.170 − 17 =
21. 21.377 − 76 =
22. 22.221 − 88 =
23. 23.114 − 69 =
24. 24.402 − 89 =
25. 25.157 − 67 =
26. 26.500 − 29 =
27. 27.277 − 27 =
28. 28.385 − 16 =
29. 29.85 − 58 =
30. 30.306 − 57 =
31. 31.197 − 97 =
32. 32.595 − 18 =
33. 33.516 − 26 =
34. 34.181 − 76 =
35. 35.558 − 89 =
36. 36.153 − 89 =
37. 37.498 − 76 =
38. 38.152 − 66 =
39. 39.162 − 96 =
40. 40.429 − 89 =

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