The easy part is to simplify the expression. The hard part is students should explain which of the exponent laws are needed to find a correct solution. Many students can solve the problem but cannot explain the how or why of the solution. There are 26 different problems with answer keys and six Law of Exponents tables for review. This is for algebra students so the rigor is higher. Note the slight difference between card #23 and 53; they have the same concept of a negative in front of coefficient but denoted differently in the solution. Print this file on large index cards (5x8)and laminate for year after year use.
My philosophy for exit cards. You should have exit cards to cover the big concepts of each quarter. Exit cards are a tool and not a lesson. If you find errors regardless how small please e-mail me so I can make corrections.