Open Middle®
Directions: Using the digits 0 to 9 at most one time each, place a digit in each box to make the statement true.
Hint
Which would be better to start with, the exponent or the base?
Answer
8/5/1/2/3 is one solution.
Source: Cassie Winchell
there are only 2 solutions
m found log 8 (512) = 3
l found log 3 (729) = 6