Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 675 · 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. 1.153 − 96 =
2. 2.201 − 66 =
3. 3.269 − 89 =
4. 4.220 − 26 =
5. 5.131 − 37 =
6. 6.91 − 38 =
7. 7.214 − 28 =
8. 8.305 − 96 =
9. 9.199 − 49 =
10. 10.584 − 99 =
11. 11.432 − 28 =
12. 12.166 − 87 =
13. 13.101 − 28 =
14. 14.226 − 27 =
15. 15.323 − 79 =
16. 16.504 − 88 =
17. 17.265 − 17 =
18. 18.527 − 89 =
19. 19.558 − 96 =
20. 20.413 − 46 =
21. 21.239 − 57 =
22. 22.369 − 27 =
23. 23.308 − 19 =
24. 24.125 − 68 =
25. 25.345 − 96 =
26. 26.221 − 46 =
27. 27.256 − 17 =
28. 28.211 − 67 =
29. 29.565 − 28 =
30. 30.348 − 68 =
31. 31.239 − 78 =
32. 32.251 − 48 =
33. 33.544 − 56 =
34. 34.492 − 27 =
35. 35.377 − 36 =
36. 36.396 − 57 =
37. 37.437 − 79 =
38. 38.301 − 16 =
39. 39.321 − 99 =
40. 40.598 − 18 =

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