Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 116 · 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. 1.323 − 99 =
2. 2.96 − 59 =
3. 3.104 − 49 =
4. 4.161 − 66 =
5. 5.418 − 88 =
6. 6.536 − 66 =
7. 7.360 − 88 =
8. 8.70 − 38 =
9. 9.468 − 89 =
10. 10.426 − 69 =
11. 11.83 − 67 =
12. 12.410 − 69 =
13. 13.552 − 88 =
14. 14.569 − 57 =
15. 15.452 − 76 =
16. 16.437 − 87 =
17. 17.170 − 86 =
18. 18.391 − 36 =
19. 19.562 − 69 =
20. 20.537 − 19 =
21. 21.398 − 18 =
22. 22.369 − 37 =
23. 23.408 − 48 =
24. 24.267 − 47 =
25. 25.469 − 69 =
26. 26.266 − 26 =
27. 27.80 − 26 =
28. 28.427 − 59 =
29. 29.448 − 57 =
30. 30.435 − 16 =
31. 31.193 − 29 =
32. 32.216 − 68 =
33. 33.508 − 36 =
34. 34.128 − 46 =
35. 35.258 − 89 =
36. 36.533 − 69 =
37. 37.451 − 37 =
38. 38.166 − 98 =
39. 39.235 − 56 =
40. 40.89 − 87 =

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