Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 568 · 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. 1.174 − 26 =
2. 2.558 − 98 =
3. 3.158 − 48 =
4. 4.248 − 27 =
5. 5.548 − 38 =
6. 6.392 − 17 =
7. 7.568 − 29 =
8. 8.178 − 47 =
9. 9.202 − 69 =
10. 10.237 − 66 =
11. 11.512 − 16 =
12. 12.421 − 89 =
13. 13.263 − 98 =
14. 14.129 − 58 =
15. 15.209 − 36 =
16. 16.248 − 29 =
17. 17.501 − 39 =
18. 18.153 − 88 =
19. 19.331 − 28 =
20. 20.408 − 78 =
21. 21.372 − 59 =
22. 22.237 − 76 =
23. 23.109 − 69 =
24. 24.464 − 57 =
25. 25.212 − 66 =
26. 26.593 − 28 =
27. 27.582 − 26 =
28. 28.204 − 29 =
29. 29.267 − 88 =
30. 30.115 − 47 =
31. 31.396 − 66 =
32. 32.274 − 47 =
33. 33.407 − 36 =
34. 34.529 − 38 =
35. 35.499 − 46 =
36. 36.501 − 96 =
37. 37.66 − 28 =
38. 38.83 − 58 =
39. 39.449 − 19 =
40. 40.229 − 76 =

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