Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 763 · 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. 1.251 − 38 =
2. 2.403 − 46 =
3. 3.233 − 96 =
4. 4.482 − 68 =
5. 5.166 − 68 =
6. 6.150 − 77 =
7. 7.379 − 38 =
8. 8.174 − 58 =
9. 9.246 − 48 =
10. 10.182 − 96 =
11. 11.361 − 26 =
12. 12.350 − 58 =
13. 13.184 − 18 =
14. 14.70 − 67 =
15. 15.311 − 47 =
16. 16.333 − 27 =
17. 17.555 − 96 =
18. 18.146 − 89 =
19. 19.424 − 17 =
20. 20.283 − 39 =
21. 21.544 − 86 =
22. 22.420 − 47 =
23. 23.549 − 88 =
24. 24.533 − 26 =
25. 25.166 − 58 =
26. 26.143 − 98 =
27. 27.128 − 27 =
28. 28.191 − 56 =
29. 29.147 − 16 =
30. 30.223 − 97 =
31. 31.418 − 19 =
32. 32.377 − 88 =
33. 33.347 − 86 =
34. 34.373 − 69 =
35. 35.222 − 78 =
36. 36.264 − 56 =
37. 37.565 − 27 =
38. 38.455 − 89 =
39. 39.376 − 47 =
40. 40.225 − 38 =

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