Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 460 · 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. 1.478 − 96 =
2. 2.449 − 38 =
3. 3.393 − 36 =
4. 4.190 − 96 =
5. 5.221 − 76 =
6. 6.585 − 17 =
7. 7.361 − 97 =
8. 8.210 − 66 =
9. 9.89 − 46 =
10. 10.138 − 46 =
11. 11.62 − 49 =
12. 12.183 − 86 =
13. 13.363 − 29 =
14. 14.73 − 16 =
15. 15.157 − 57 =
16. 16.408 − 99 =
17. 17.471 − 47 =
18. 18.442 − 79 =
19. 19.468 − 68 =
20. 20.316 − 67 =
21. 21.323 − 96 =
22. 22.430 − 57 =
23. 23.471 − 27 =
24. 24.394 − 37 =
25. 25.195 − 76 =
26. 26.441 − 47 =
27. 27.381 − 46 =
28. 28.475 − 28 =
29. 29.453 − 66 =
30. 30.448 − 79 =
31. 31.138 − 49 =
32. 32.579 − 48 =
33. 33.363 − 99 =
34. 34.104 − 16 =
35. 35.213 − 18 =
36. 36.389 − 17 =
37. 37.201 − 36 =
38. 38.266 − 89 =
39. 39.354 − 87 =
40. 40.263 − 59 =

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