Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 585 · 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. 1.359 − 39 =
2. 2.256 − 98 =
3. 3.155 − 67 =
4. 4.245 − 78 =
5. 5.275 − 56 =
6. 6.191 − 59 =
7. 7.461 − 39 =
8. 8.117 − 49 =
9. 9.141 − 56 =
10. 10.416 − 96 =
11. 11.576 − 28 =
12. 12.285 − 89 =
13. 13.206 − 67 =
14. 14.164 − 68 =
15. 15.470 − 37 =
16. 16.200 − 26 =
17. 17.102 − 77 =
18. 18.145 − 27 =
19. 19.240 − 37 =
20. 20.426 − 26 =
21. 21.452 − 37 =
22. 22.163 − 79 =
23. 23.424 − 69 =
24. 24.221 − 29 =
25. 25.76 − 56 =
26. 26.563 − 26 =
27. 27.469 − 26 =
28. 28.143 − 99 =
29. 29.218 − 56 =
30. 30.237 − 47 =
31. 31.547 − 57 =
32. 32.534 − 97 =
33. 33.191 − 46 =
34. 34.420 − 37 =
35. 35.300 − 59 =
36. 36.556 − 49 =
37. 37.365 − 57 =
38. 38.235 − 87 =
39. 39.466 − 77 =
40. 40.383 − 88 =

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