Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 141 · 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. 1.270 − 57 =
2. 2.335 − 96 =
3. 3.405 − 59 =
4. 4.364 − 17 =
5. 5.90 − 39 =
6. 6.122 − 96 =
7. 7.442 − 37 =
8. 8.316 − 77 =
9. 9.83 − 18 =
10. 10.526 − 99 =
11. 11.400 − 48 =
12. 12.422 − 38 =
13. 13.211 − 17 =
14. 14.312 − 49 =
15. 15.382 − 47 =
16. 16.75 − 16 =
17. 17.133 − 78 =
18. 18.311 − 18 =
19. 19.261 − 16 =
20. 20.374 − 46 =
21. 21.262 − 77 =
22. 22.368 − 87 =
23. 23.585 − 38 =
24. 24.205 − 17 =
25. 25.306 − 18 =
26. 26.362 − 18 =
27. 27.163 − 67 =
28. 28.186 − 87 =
29. 29.132 − 86 =
30. 30.470 − 27 =
31. 31.516 − 29 =
32. 32.582 − 49 =
33. 33.488 − 58 =
34. 34.387 − 47 =
35. 35.158 − 26 =
36. 36.411 − 18 =
37. 37.111 − 49 =
38. 38.431 − 69 =
39. 39.488 − 89 =
40. 40.147 − 47 =

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