Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 495 · 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. 1.264 − 57 =
2. 2.571 − 16 =
3. 3.533 − 86 =
4. 4.212 − 79 =
5. 5.524 − 46 =
6. 6.532 − 86 =
7. 7.507 − 17 =
8. 8.191 − 88 =
9. 9.398 − 17 =
10. 10.219 − 76 =
11. 11.171 − 47 =
12. 12.116 − 96 =
13. 13.324 − 78 =
14. 14.468 − 58 =
15. 15.441 − 89 =
16. 16.93 − 46 =
17. 17.303 − 38 =
18. 18.174 − 29 =
19. 19.167 − 96 =
20. 20.201 − 48 =
21. 21.313 − 86 =
22. 22.160 − 77 =
23. 23.442 − 28 =
24. 24.229 − 76 =
25. 25.411 − 46 =
26. 26.141 − 87 =
27. 27.179 − 18 =
28. 28.337 − 76 =
29. 29.142 − 47 =
30. 30.103 − 19 =
31. 31.560 − 99 =
32. 32.77 − 28 =
33. 33.109 − 16 =
34. 34.187 − 49 =
35. 35.306 − 47 =
36. 36.167 − 97 =
37. 37.233 − 59 =
38. 38.125 − 57 =
39. 39.154 − 38 =
40. 40.522 − 67 =

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