Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 296 · 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. 1.427 − 98 =
2. 2.451 − 36 =
3. 3.417 − 29 =
4. 4.63 − 58 =
5. 5.187 − 38 =
6. 6.122 − 97 =
7. 7.469 − 67 =
8. 8.388 − 49 =
9. 9.415 − 99 =
10. 10.274 − 57 =
11. 11.52 − 26 =
12. 12.508 − 69 =
13. 13.319 − 17 =
14. 14.358 − 46 =
15. 15.581 − 17 =
16. 16.189 − 27 =
17. 17.453 − 67 =
18. 18.147 − 98 =
19. 19.576 − 59 =
20. 20.546 − 27 =
21. 21.414 − 49 =
22. 22.572 − 68 =
23. 23.362 − 26 =
24. 24.254 − 69 =
25. 25.208 − 88 =
26. 26.189 − 29 =
27. 27.282 − 59 =
28. 28.160 − 69 =
29. 29.517 − 98 =
30. 30.296 − 16 =
31. 31.532 − 87 =
32. 32.355 − 18 =
33. 33.510 − 38 =
34. 34.343 − 26 =
35. 35.553 − 29 =
36. 36.75 − 57 =
37. 37.401 − 86 =
38. 38.419 − 67 =
39. 39.372 − 76 =
40. 40.391 − 28 =

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