Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 683 · 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. 1.126 − 56 =
2. 2.302 − 96 =
3. 3.500 − 26 =
4. 4.426 − 68 =
5. 5.470 − 38 =
6. 6.88 − 26 =
7. 7.256 − 36 =
8. 8.583 − 78 =
9. 9.527 − 27 =
10. 10.362 − 28 =
11. 11.471 − 66 =
12. 12.348 − 57 =
13. 13.235 − 97 =
14. 14.262 − 76 =
15. 15.204 − 56 =
16. 16.585 − 17 =
17. 17.189 − 88 =
18. 18.515 − 67 =
19. 19.439 − 29 =
20. 20.590 − 38 =
21. 21.328 − 38 =
22. 22.187 − 98 =
23. 23.346 − 68 =
24. 24.552 − 66 =
25. 25.493 − 47 =
26. 26.121 − 89 =
27. 27.511 − 56 =
28. 28.139 − 98 =
29. 29.64 − 58 =
30. 30.505 − 28 =
31. 31.259 − 67 =
32. 32.442 − 49 =
33. 33.180 − 96 =
34. 34.443 − 99 =
35. 35.213 − 67 =
36. 36.76 − 69 =
37. 37.191 − 38 =
38. 38.151 − 78 =
39. 39.101 − 68 =
40. 40.511 − 99 =

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