Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 498 · 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. 1.72 − 36 =
2. 2.308 − 59 =
3. 3.548 − 19 =
4. 4.413 − 48 =
5. 5.151 − 88 =
6. 6.441 − 59 =
7. 7.320 − 66 =
8. 8.585 − 47 =
9. 9.271 − 66 =
10. 10.450 − 38 =
11. 11.160 − 49 =
12. 12.301 − 67 =
13. 13.374 − 96 =
14. 14.520 − 19 =
15. 15.405 − 28 =
16. 16.326 − 56 =
17. 17.256 − 57 =
18. 18.152 − 57 =
19. 19.84 − 36 =
20. 20.518 − 69 =
21. 21.542 − 97 =
22. 22.152 − 69 =
23. 23.179 − 99 =
24. 24.580 − 69 =
25. 25.199 − 27 =
26. 26.375 − 49 =
27. 27.465 − 49 =
28. 28.246 − 39 =
29. 29.394 − 98 =
30. 30.169 − 97 =
31. 31.113 − 36 =
32. 32.200 − 66 =
33. 33.253 − 56 =
34. 34.160 − 96 =
35. 35.347 − 58 =
36. 36.455 − 18 =
37. 37.93 − 16 =
38. 38.85 − 76 =
39. 39.82 − 38 =
40. 40.262 − 38 =

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