Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 252 · 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. 1.103 − 48 =
2. 2.191 − 69 =
3. 3.115 − 28 =
4. 4.179 − 66 =
5. 5.598 − 28 =
6. 6.75 − 37 =
7. 7.173 − 36 =
8. 8.176 − 96 =
9. 9.55 − 38 =
10. 10.397 − 26 =
11. 11.146 − 68 =
12. 12.127 − 96 =
13. 13.116 − 76 =
14. 14.237 − 96 =
15. 15.324 − 46 =
16. 16.494 − 87 =
17. 17.72 − 49 =
18. 18.515 − 37 =
19. 19.103 − 38 =
20. 20.418 − 48 =
21. 21.95 − 36 =
22. 22.123 − 57 =
23. 23.494 − 36 =
24. 24.514 − 49 =
25. 25.359 − 19 =
26. 26.391 − 96 =
27. 27.591 − 67 =
28. 28.477 − 98 =
29. 29.525 − 88 =
30. 30.430 − 58 =
31. 31.363 − 68 =
32. 32.522 − 88 =
33. 33.275 − 99 =
34. 34.534 − 37 =
35. 35.162 − 57 =
36. 36.340 − 69 =
37. 37.316 − 38 =
38. 38.192 − 16 =
39. 39.82 − 46 =
40. 40.304 − 67 =

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