Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 620 · 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. 1.327 − 56 =
2. 2.501 − 86 =
3. 3.166 − 79 =
4. 4.396 − 99 =
5. 5.304 − 16 =
6. 6.131 − 48 =
7. 7.274 − 67 =
8. 8.336 − 67 =
9. 9.548 − 38 =
10. 10.453 − 38 =
11. 11.209 − 68 =
12. 12.563 − 86 =
13. 13.99 − 97 =
14. 14.571 − 56 =
15. 15.349 − 27 =
16. 16.444 − 36 =
17. 17.301 − 56 =
18. 18.481 − 99 =
19. 19.596 − 57 =
20. 20.150 − 89 =
21. 21.294 − 27 =
22. 22.97 − 48 =
23. 23.543 − 27 =
24. 24.92 − 77 =
25. 25.76 − 38 =
26. 26.303 − 49 =
27. 27.272 − 86 =
28. 28.123 − 39 =
29. 29.180 − 46 =
30. 30.598 − 58 =
31. 31.347 − 38 =
32. 32.458 − 36 =
33. 33.465 − 66 =
34. 34.368 − 27 =
35. 35.374 − 18 =
36. 36.295 − 49 =
37. 37.64 − 46 =
38. 38.243 − 29 =
39. 39.377 − 46 =
40. 40.270 − 77 =

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