Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 817 · 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. 1.190 − 27 =
2. 2.312 − 77 =
3. 3.117 − 16 =
4. 4.92 − 18 =
5. 5.538 − 57 =
6. 6.118 − 67 =
7. 7.516 − 46 =
8. 8.118 − 67 =
9. 9.401 − 98 =
10. 10.403 − 39 =
11. 11.549 − 29 =
12. 12.428 − 97 =
13. 13.215 − 69 =
14. 14.595 − 58 =
15. 15.171 − 38 =
16. 16.526 − 39 =
17. 17.489 − 66 =
18. 18.145 − 28 =
19. 19.200 − 96 =
20. 20.462 − 47 =
21. 21.391 − 56 =
22. 22.482 − 28 =
23. 23.469 − 38 =
24. 24.82 − 59 =
25. 25.468 − 98 =
26. 26.60 − 18 =
27. 27.340 − 38 =
28. 28.72 − 69 =
29. 29.401 − 46 =
30. 30.410 − 56 =
31. 31.116 − 69 =
32. 32.375 − 28 =
33. 33.76 − 26 =
34. 34.278 − 67 =
35. 35.524 − 66 =
36. 36.342 − 46 =
37. 37.290 − 16 =
38. 38.296 − 66 =
39. 39.496 − 28 =
40. 40.481 − 16 =

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