Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 383 · 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. 1.471 − 38 =
2. 2.158 − 96 =
3. 3.220 − 26 =
4. 4.553 − 56 =
5. 5.583 − 47 =
6. 6.436 − 36 =
7. 7.203 − 36 =
8. 8.85 − 49 =
9. 9.288 − 68 =
10. 10.418 − 37 =
11. 11.181 − 57 =
12. 12.419 − 46 =
13. 13.160 − 58 =
14. 14.175 − 97 =
15. 15.535 − 67 =
16. 16.72 − 49 =
17. 17.115 − 49 =
18. 18.101 − 16 =
19. 19.510 − 17 =
20. 20.266 − 87 =
21. 21.171 − 96 =
22. 22.98 − 97 =
23. 23.522 − 36 =
24. 24.576 − 46 =
25. 25.282 − 76 =
26. 26.367 − 46 =
27. 27.565 − 26 =
28. 28.440 − 49 =
29. 29.340 − 66 =
30. 30.577 − 77 =
31. 31.122 − 98 =
32. 32.271 − 87 =
33. 33.392 − 79 =
34. 34.179 − 16 =
35. 35.307 − 36 =
36. 36.277 − 38 =
37. 37.207 − 96 =
38. 38.222 − 28 =
39. 39.97 − 88 =
40. 40.206 − 66 =

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