Show 2 more in a set with 5. Show 3 less in a set with 12.

To answer the first part of your question, "Show 2 more in a set with 5," you can simply add 2 to 5.

5 + 2 = 7

Therefore, 2 more in a set with 5 is equal to 7.

For the second part of your question, "Show 3 less in a set with 12," you can subtract 3 from 12.

12 - 3 = 9

Thus, 3 less in a set with 12 is equal to 9.