Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 633 · 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. 1.357 − 26 =
2. 2.156 − 56 =
3. 3.168 − 69 =
4. 4.81 − 17 =
5. 5.141 − 76 =
6. 6.191 − 27 =
7. 7.365 − 89 =
8. 8.343 − 27 =
9. 9.366 − 88 =
10. 10.455 − 38 =
11. 11.272 − 49 =
12. 12.552 − 99 =
13. 13.92 − 17 =
14. 14.228 − 37 =
15. 15.141 − 87 =
16. 16.293 − 46 =
17. 17.491 − 26 =
18. 18.379 − 26 =
19. 19.454 − 89 =
20. 20.197 − 87 =
21. 21.598 − 16 =
22. 22.328 − 39 =
23. 23.474 − 88 =
24. 24.575 − 69 =
25. 25.492 − 59 =
26. 26.179 − 96 =
27. 27.124 − 58 =
28. 28.306 − 69 =
29. 29.218 − 96 =
30. 30.596 − 46 =
31. 31.425 − 89 =
32. 32.597 − 99 =
33. 33.375 − 88 =
34. 34.120 − 49 =
35. 35.558 − 58 =
36. 36.597 − 98 =
37. 37.198 − 16 =
38. 38.113 − 38 =
39. 39.543 − 68 =
40. 40.346 − 46 =

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