Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 875 · 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. 1.171 − 58 =
2. 2.253 − 79 =
3. 3.360 − 77 =
4. 4.276 − 26 =
5. 5.279 − 17 =
6. 6.533 − 49 =
7. 7.554 − 36 =
8. 8.576 − 88 =
9. 9.340 − 16 =
10. 10.387 − 36 =
11. 11.277 − 76 =
12. 12.583 − 67 =
13. 13.176 − 17 =
14. 14.313 − 86 =
15. 15.88 − 17 =
16. 16.424 − 78 =
17. 17.596 − 97 =
18. 18.359 − 27 =
19. 19.160 − 38 =
20. 20.234 − 38 =
21. 21.58 − 49 =
22. 22.526 − 59 =
23. 23.502 − 79 =
24. 24.545 − 86 =
25. 25.583 − 59 =
26. 26.358 − 18 =
27. 27.595 − 17 =
28. 28.550 − 76 =
29. 29.319 − 97 =
30. 30.550 − 36 =
31. 31.542 − 18 =
32. 32.91 − 79 =
33. 33.469 − 17 =
34. 34.414 − 66 =
35. 35.62 − 47 =
36. 36.333 − 99 =
37. 37.482 − 48 =
38. 38.374 − 89 =
39. 39.541 − 78 =
40. 40.148 − 37 =

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