Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 429 · 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. 1.471 − 66 =
2. 2.133 − 26 =
3. 3.176 − 96 =
4. 4.201 − 19 =
5. 5.414 − 77 =
6. 6.420 − 18 =
7. 7.589 − 97 =
8. 8.263 − 47 =
9. 9.538 − 97 =
10. 10.526 − 59 =
11. 11.315 − 99 =
12. 12.163 − 76 =
13. 13.558 − 37 =
14. 14.433 − 46 =
15. 15.179 − 27 =
16. 16.137 − 66 =
17. 17.470 − 47 =
18. 18.326 − 79 =
19. 19.291 − 48 =
20. 20.594 − 89 =
21. 21.77 − 58 =
22. 22.563 − 99 =
23. 23.296 − 19 =
24. 24.318 − 17 =
25. 25.151 − 27 =
26. 26.550 − 46 =
27. 27.173 − 37 =
28. 28.123 − 58 =
29. 29.442 − 79 =
30. 30.79 − 27 =
31. 31.403 − 29 =
32. 32.206 − 57 =
33. 33.273 − 69 =
34. 34.232 − 18 =
35. 35.202 − 99 =
36. 36.294 − 97 =
37. 37.527 − 18 =
38. 38.152 − 98 =
39. 39.178 − 37 =
40. 40.481 − 38 =

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