Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 556 · 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. 1.481 − 67 =
2. 2.523 − 49 =
3. 3.384 − 49 =
4. 4.329 − 49 =
5. 5.152 − 58 =
6. 6.534 − 98 =
7. 7.423 − 26 =
8. 8.157 − 99 =
9. 9.489 − 36 =
10. 10.431 − 29 =
11. 11.102 − 77 =
12. 12.207 − 27 =
13. 13.309 − 16 =
14. 14.134 − 47 =
15. 15.187 − 46 =
16. 16.255 − 18 =
17. 17.436 − 69 =
18. 18.308 − 78 =
19. 19.150 − 36 =
20. 20.200 − 47 =
21. 21.303 − 49 =
22. 22.568 − 26 =
23. 23.144 − 66 =
24. 24.283 − 48 =
25. 25.439 − 36 =
26. 26.465 − 29 =
27. 27.597 − 19 =
28. 28.335 − 99 =
29. 29.318 − 39 =
30. 30.158 − 16 =
31. 31.571 − 56 =
32. 32.294 − 39 =
33. 33.297 − 16 =
34. 34.291 − 68 =
35. 35.240 − 77 =
36. 36.275 − 37 =
37. 37.548 − 88 =
38. 38.379 − 56 =
39. 39.329 − 56 =
40. 40.477 − 67 =

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