Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 927 · 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. 1.451 − 46 =
2. 2.138 − 56 =
3. 3.180 − 99 =
4. 4.189 − 56 =
5. 5.167 − 98 =
6. 6.491 − 76 =
7. 7.92 − 77 =
8. 8.296 − 26 =
9. 9.280 − 76 =
10. 10.199 − 76 =
11. 11.524 − 38 =
12. 12.387 − 96 =
13. 13.191 − 28 =
14. 14.105 − 59 =
15. 15.208 − 39 =
16. 16.223 − 17 =
17. 17.174 − 99 =
18. 18.107 − 56 =
19. 19.517 − 76 =
20. 20.280 − 26 =
21. 21.464 − 78 =
22. 22.592 − 67 =
23. 23.144 − 19 =
24. 24.222 − 58 =
25. 25.204 − 27 =
26. 26.209 − 28 =
27. 27.106 − 59 =
28. 28.239 − 86 =
29. 29.149 − 96 =
30. 30.129 − 36 =
31. 31.142 − 47 =
32. 32.92 − 36 =
33. 33.451 − 49 =
34. 34.158 − 57 =
35. 35.457 − 16 =
36. 36.423 − 98 =
37. 37.257 − 97 =
38. 38.511 − 96 =
39. 39.442 − 46 =
40. 40.269 − 67 =

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