Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 292 · 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. 1.139 − 36 =
2. 2.306 − 58 =
3. 3.243 − 26 =
4. 4.438 − 17 =
5. 5.454 − 48 =
6. 6.542 − 49 =
7. 7.476 − 36 =
8. 8.79 − 19 =
9. 9.138 − 26 =
10. 10.445 − 98 =
11. 11.250 − 46 =
12. 12.552 − 26 =
13. 13.457 − 38 =
14. 14.295 − 16 =
15. 15.478 − 78 =
16. 16.458 − 86 =
17. 17.300 − 98 =
18. 18.200 − 59 =
19. 19.291 − 86 =
20. 20.368 − 19 =
21. 21.332 − 39 =
22. 22.286 − 27 =
23. 23.275 − 96 =
24. 24.246 − 37 =
25. 25.503 − 28 =
26. 26.256 − 16 =
27. 27.584 − 29 =
28. 28.152 − 38 =
29. 29.306 − 66 =
30. 30.437 − 38 =
31. 31.398 − 39 =
32. 32.250 − 76 =
33. 33.386 − 48 =
34. 34.544 − 66 =
35. 35.459 − 17 =
36. 36.556 − 26 =
37. 37.559 − 99 =
38. 38.285 − 97 =
39. 39.243 − 89 =
40. 40.348 − 97 =

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