Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 797 · 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 − 57 =
2. 2.124 − 56 =
3. 3.463 − 16 =
4. 4.249 − 56 =
5. 5.478 − 69 =
6. 6.282 − 57 =
7. 7.357 − 98 =
8. 8.400 − 37 =
9. 9.582 − 59 =
10. 10.411 − 69 =
11. 11.352 − 47 =
12. 12.171 − 36 =
13. 13.161 − 77 =
14. 14.161 − 58 =
15. 15.468 − 36 =
16. 16.404 − 69 =
17. 17.435 − 56 =
18. 18.573 − 69 =
19. 19.581 − 46 =
20. 20.298 − 29 =
21. 21.108 − 86 =
22. 22.306 − 99 =
23. 23.198 − 16 =
24. 24.251 − 18 =
25. 25.166 − 49 =
26. 26.153 − 87 =
27. 27.484 − 36 =
28. 28.257 − 49 =
29. 29.400 − 69 =
30. 30.510 − 49 =
31. 31.361 − 86 =
32. 32.274 − 16 =
33. 33.461 − 26 =
34. 34.445 − 28 =
35. 35.90 − 88 =
36. 36.594 − 79 =
37. 37.318 − 88 =
38. 38.182 − 29 =
39. 39.322 − 36 =
40. 40.146 − 49 =

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