Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 526 · 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. 1.162 − 97 =
2. 2.348 − 98 =
3. 3.485 − 78 =
4. 4.279 − 59 =
5. 5.168 − 97 =
6. 6.590 − 18 =
7. 7.451 − 77 =
8. 8.264 − 17 =
9. 9.74 − 19 =
10. 10.175 − 66 =
11. 11.212 − 88 =
12. 12.272 − 96 =
13. 13.180 − 28 =
14. 14.118 − 56 =
15. 15.557 − 98 =
16. 16.543 − 18 =
17. 17.147 − 76 =
18. 18.329 − 39 =
19. 19.489 − 78 =
20. 20.369 − 28 =
21. 21.445 − 97 =
22. 22.302 − 39 =
23. 23.97 − 86 =
24. 24.470 − 36 =
25. 25.366 − 19 =
26. 26.492 − 18 =
27. 27.281 − 16 =
28. 28.387 − 99 =
29. 29.433 − 69 =
30. 30.123 − 96 =
31. 31.492 − 27 =
32. 32.529 − 96 =
33. 33.537 − 49 =
34. 34.256 − 36 =
35. 35.322 − 78 =
36. 36.505 − 78 =
37. 37.431 − 68 =
38. 38.302 − 57 =
39. 39.521 − 69 =
40. 40.316 − 38 =

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