Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 962 · 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. 1.104 − 27 =
2. 2.389 − 19 =
3. 3.412 − 46 =
4. 4.462 − 26 =
5. 5.66 − 29 =
6. 6.350 − 17 =
7. 7.266 − 87 =
8. 8.329 − 48 =
9. 9.554 − 26 =
10. 10.568 − 89 =
11. 11.314 − 78 =
12. 12.532 − 86 =
13. 13.258 − 27 =
14. 14.62 − 56 =
15. 15.499 − 86 =
16. 16.173 − 47 =
17. 17.277 − 56 =
18. 18.264 − 56 =
19. 19.59 − 56 =
20. 20.412 − 49 =
21. 21.308 − 78 =
22. 22.360 − 76 =
23. 23.174 − 59 =
24. 24.110 − 56 =
25. 25.82 − 49 =
26. 26.134 − 66 =
27. 27.169 − 26 =
28. 28.497 − 97 =
29. 29.59 − 18 =
30. 30.75 − 28 =
31. 31.269 − 96 =
32. 32.177 − 96 =
33. 33.192 − 78 =
34. 34.584 − 17 =
35. 35.226 − 17 =
36. 36.158 − 77 =
37. 37.291 − 56 =
38. 38.448 − 57 =
39. 39.379 − 37 =
40. 40.218 − 86 =

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