Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 839 · 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. 1.75 − 26 =
2. 2.80 − 68 =
3. 3.531 − 98 =
4. 4.334 − 78 =
5. 5.447 − 16 =
6. 6.166 − 99 =
7. 7.148 − 17 =
8. 8.166 − 98 =
9. 9.174 − 17 =
10. 10.253 − 78 =
11. 11.579 − 78 =
12. 12.494 − 57 =
13. 13.136 − 86 =
14. 14.588 − 87 =
15. 15.421 − 76 =
16. 16.435 − 66 =
17. 17.357 − 19 =
18. 18.504 − 59 =
19. 19.267 − 96 =
20. 20.394 − 69 =
21. 21.217 − 76 =
22. 22.244 − 17 =
23. 23.490 − 38 =
24. 24.414 − 18 =
25. 25.365 − 58 =
26. 26.389 − 57 =
27. 27.197 − 19 =
28. 28.76 − 68 =
29. 29.75 − 37 =
30. 30.435 − 16 =
31. 31.64 − 26 =
32. 32.161 − 87 =
33. 33.501 − 28 =
34. 34.409 − 98 =
35. 35.256 − 99 =
36. 36.365 − 56 =
37. 37.349 − 28 =
38. 38.542 − 77 =
39. 39.429 − 29 =
40. 40.423 − 99 =

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