Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 576 · 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. 1.144 − 49 =
2. 2.431 − 79 =
3. 3.595 − 48 =
4. 4.541 − 37 =
5. 5.547 − 86 =
6. 6.248 − 36 =
7. 7.370 − 57 =
8. 8.129 − 36 =
9. 9.324 − 16 =
10. 10.201 − 79 =
11. 11.315 − 78 =
12. 12.420 − 86 =
13. 13.536 − 18 =
14. 14.293 − 27 =
15. 15.554 − 47 =
16. 16.371 − 98 =
17. 17.158 − 56 =
18. 18.542 − 19 =
19. 19.302 − 86 =
20. 20.268 − 18 =
21. 21.86 − 16 =
22. 22.132 − 26 =
23. 23.535 − 68 =
24. 24.285 − 18 =
25. 25.262 − 27 =
26. 26.389 − 88 =
27. 27.512 − 57 =
28. 28.550 − 97 =
29. 29.547 − 77 =
30. 30.280 − 38 =
31. 31.184 − 96 =
32. 32.132 − 88 =
33. 33.516 − 37 =
34. 34.178 − 59 =
35. 35.278 − 28 =
36. 36.569 − 99 =
37. 37.140 − 99 =
38. 38.455 − 29 =
39. 39.354 − 69 =
40. 40.135 − 66 =

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