Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 229 · 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. 1.58 − 27 =
2. 2.162 − 67 =
3. 3.555 − 49 =
4. 4.305 − 66 =
5. 5.527 − 89 =
6. 6.331 − 86 =
7. 7.410 − 79 =
8. 8.555 − 18 =
9. 9.75 − 39 =
10. 10.223 − 17 =
11. 11.581 − 56 =
12. 12.189 − 56 =
13. 13.122 − 67 =
14. 14.291 − 99 =
15. 15.205 − 38 =
16. 16.596 − 39 =
17. 17.280 − 56 =
18. 18.195 − 38 =
19. 19.334 − 89 =
20. 20.471 − 69 =
21. 21.175 − 96 =
22. 22.447 − 99 =
23. 23.141 − 27 =
24. 24.297 − 57 =
25. 25.349 − 28 =
26. 26.526 − 17 =
27. 27.449 − 16 =
28. 28.363 − 96 =
29. 29.100 − 47 =
30. 30.372 − 98 =
31. 31.205 − 47 =
32. 32.248 − 46 =
33. 33.358 − 28 =
34. 34.139 − 28 =
35. 35.215 − 97 =
36. 36.443 − 77 =
37. 37.329 − 87 =
38. 38.297 − 97 =
39. 39.451 − 27 =
40. 40.515 − 77 =

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