Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 793 · 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. 1.331 − 76 =
2. 2.306 − 66 =
3. 3.314 − 29 =
4. 4.123 − 26 =
5. 5.157 − 96 =
6. 6.101 − 86 =
7. 7.335 − 67 =
8. 8.258 − 26 =
9. 9.366 − 96 =
10. 10.238 − 26 =
11. 11.509 − 79 =
12. 12.211 − 87 =
13. 13.422 − 46 =
14. 14.535 − 76 =
15. 15.74 − 67 =
16. 16.145 − 66 =
17. 17.328 − 97 =
18. 18.206 − 26 =
19. 19.392 − 38 =
20. 20.211 − 39 =
21. 21.159 − 47 =
22. 22.174 − 97 =
23. 23.543 − 38 =
24. 24.422 − 27 =
25. 25.452 − 46 =
26. 26.592 − 27 =
27. 27.152 − 19 =
28. 28.353 − 96 =
29. 29.255 − 36 =
30. 30.287 − 46 =
31. 31.472 − 26 =
32. 32.169 − 57 =
33. 33.145 − 96 =
34. 34.352 − 68 =
35. 35.314 − 16 =
36. 36.152 − 78 =
37. 37.258 − 87 =
38. 38.597 − 26 =
39. 39.92 − 38 =
40. 40.128 − 67 =

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