Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 158 · 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. 1.202 − 19 =
2. 2.430 − 68 =
3. 3.138 − 38 =
4. 4.569 − 29 =
5. 5.413 − 97 =
6. 6.311 − 66 =
7. 7.594 − 76 =
8. 8.204 − 18 =
9. 9.403 − 76 =
10. 10.138 − 56 =
11. 11.181 − 39 =
12. 12.97 − 68 =
13. 13.184 − 67 =
14. 14.386 − 46 =
15. 15.581 − 19 =
16. 16.183 − 99 =
17. 17.207 − 77 =
18. 18.378 − 76 =
19. 19.457 − 17 =
20. 20.175 − 96 =
21. 21.323 − 28 =
22. 22.292 − 38 =
23. 23.236 − 99 =
24. 24.285 − 86 =
25. 25.191 − 19 =
26. 26.157 − 48 =
27. 27.290 − 98 =
28. 28.541 − 87 =
29. 29.146 − 29 =
30. 30.179 − 98 =
31. 31.154 − 67 =
32. 32.325 − 46 =
33. 33.590 − 27 =
34. 34.483 − 59 =
35. 35.316 − 16 =
36. 36.217 − 57 =
37. 37.564 − 67 =
38. 38.585 − 26 =
39. 39.564 − 66 =
40. 40.150 − 67 =

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