Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 38 · 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. 1.159 − 96 =
2. 2.153 − 79 =
3. 3.240 − 66 =
4. 4.565 − 28 =
5. 5.463 − 46 =
6. 6.101 − 86 =
7. 7.515 − 49 =
8. 8.411 − 89 =
9. 9.512 − 39 =
10. 10.449 − 96 =
11. 11.479 − 17 =
12. 12.253 − 79 =
13. 13.136 − 37 =
14. 14.53 − 29 =
15. 15.580 − 99 =
16. 16.174 − 17 =
17. 17.116 − 38 =
18. 18.108 − 59 =
19. 19.380 − 99 =
20. 20.370 − 49 =
21. 21.206 − 99 =
22. 22.296 − 59 =
23. 23.138 − 69 =
24. 24.501 − 87 =
25. 25.179 − 48 =
26. 26.101 − 27 =
27. 27.136 − 76 =
28. 28.515 − 28 =
29. 29.164 − 76 =
30. 30.139 − 17 =
31. 31.382 − 79 =
32. 32.381 − 58 =
33. 33.535 − 17 =
34. 34.118 − 98 =
35. 35.168 − 78 =
36. 36.285 − 56 =
37. 37.99 − 67 =
38. 38.113 − 89 =
39. 39.573 − 68 =
40. 40.156 − 27 =

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