Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 816 · 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. 1.439 − 48 =
2. 2.303 − 96 =
3. 3.470 − 58 =
4. 4.461 − 69 =
5. 5.559 − 78 =
6. 6.566 − 96 =
7. 7.68 − 59 =
8. 8.479 − 36 =
9. 9.144 − 39 =
10. 10.491 − 38 =
11. 11.130 − 37 =
12. 12.232 − 38 =
13. 13.174 − 99 =
14. 14.421 − 47 =
15. 15.477 − 87 =
16. 16.207 − 67 =
17. 17.465 − 89 =
18. 18.497 − 66 =
19. 19.348 − 77 =
20. 20.104 − 28 =
21. 21.127 − 19 =
22. 22.537 − 96 =
23. 23.145 − 47 =
24. 24.202 − 98 =
25. 25.224 − 39 =
26. 26.111 − 38 =
27. 27.157 − 87 =
28. 28.501 − 79 =
29. 29.233 − 77 =
30. 30.147 − 46 =
31. 31.185 − 87 =
32. 32.516 − 96 =
33. 33.201 − 46 =
34. 34.354 − 67 =
35. 35.460 − 16 =
36. 36.339 − 86 =
37. 37.147 − 68 =
38. 38.581 − 96 =
39. 39.389 − 76 =
40. 40.157 − 97 =

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