Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 523 · 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. 1.68 − 56 =
2. 2.475 − 48 =
3. 3.317 − 58 =
4. 4.424 − 96 =
5. 5.506 − 16 =
6. 6.101 − 78 =
7. 7.187 − 97 =
8. 8.143 − 67 =
9. 9.358 − 97 =
10. 10.234 − 29 =
11. 11.104 − 58 =
12. 12.232 − 27 =
13. 13.199 − 17 =
14. 14.320 − 69 =
15. 15.406 − 68 =
16. 16.282 − 46 =
17. 17.128 − 57 =
18. 18.188 − 67 =
19. 19.368 − 16 =
20. 20.72 − 46 =
21. 21.551 − 39 =
22. 22.560 − 98 =
23. 23.153 − 96 =
24. 24.206 − 36 =
25. 25.242 − 66 =
26. 26.209 − 89 =
27. 27.301 − 99 =
28. 28.582 − 47 =
29. 29.240 − 78 =
30. 30.502 − 37 =
31. 31.558 − 78 =
32. 32.108 − 17 =
33. 33.342 − 27 =
34. 34.370 − 59 =
35. 35.340 − 27 =
36. 36.554 − 19 =
37. 37.509 − 78 =
38. 38.526 − 76 =
39. 39.178 − 86 =
40. 40.383 − 69 =

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