Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 956 · 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. 1.459 − 77 =
2. 2.237 − 69 =
3. 3.523 − 28 =
4. 4.405 − 48 =
5. 5.289 − 27 =
6. 6.214 − 17 =
7. 7.458 − 98 =
8. 8.388 − 28 =
9. 9.243 − 67 =
10. 10.496 − 59 =
11. 11.182 − 88 =
12. 12.391 − 89 =
13. 13.509 − 39 =
14. 14.580 − 76 =
15. 15.119 − 67 =
16. 16.144 − 37 =
17. 17.431 − 46 =
18. 18.227 − 99 =
19. 19.243 − 88 =
20. 20.295 − 98 =
21. 21.98 − 58 =
22. 22.383 − 69 =
23. 23.383 − 48 =
24. 24.431 − 67 =
25. 25.122 − 48 =
26. 26.198 − 66 =
27. 27.551 − 78 =
28. 28.487 − 57 =
29. 29.75 − 48 =
30. 30.550 − 97 =
31. 31.248 − 46 =
32. 32.106 − 47 =
33. 33.194 − 28 =
34. 34.200 − 96 =
35. 35.535 − 58 =
36. 36.348 − 97 =
37. 37.198 − 58 =
38. 38.569 − 28 =
39. 39.428 − 89 =
40. 40.91 − 48 =

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