Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 75 · 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. 1.347 − 16 =
2. 2.231 − 88 =
3. 3.370 − 96 =
4. 4.256 − 39 =
5. 5.67 − 57 =
6. 6.242 − 67 =
7. 7.156 − 26 =
8. 8.302 − 49 =
9. 9.395 − 17 =
10. 10.180 − 87 =
11. 11.329 − 49 =
12. 12.271 − 49 =
13. 13.586 − 26 =
14. 14.184 − 27 =
15. 15.115 − 49 =
16. 16.66 − 17 =
17. 17.315 − 69 =
18. 18.83 − 58 =
19. 19.532 − 98 =
20. 20.457 − 88 =
21. 21.218 − 99 =
22. 22.60 − 47 =
23. 23.319 − 47 =
24. 24.447 − 36 =
25. 25.169 − 86 =
26. 26.145 − 88 =
27. 27.357 − 86 =
28. 28.268 − 78 =
29. 29.587 − 89 =
30. 30.502 − 89 =
31. 31.222 − 38 =
32. 32.409 − 97 =
33. 33.370 − 38 =
34. 34.451 − 36 =
35. 35.85 − 78 =
36. 36.222 − 18 =
37. 37.396 − 69 =
38. 38.161 − 86 =
39. 39.373 − 29 =
40. 40.332 − 48 =

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