AMC 12B 2006 - Full Walkthrough

This is me solving all the problems in the AMC 12B from the year 2006.

[@akshaygulabrao4423]

truly impressive

[@danieljin798]

Thank you!

[@akshaygulabrao4423]

For problem 9, why did you exclude _ _ 0 and _ _ 2

[@akshaygulabrao4423]

ohh you represented the numbers right to left

[@danieljin798]

The digits have to be in strictly increasing order, so for the cases of _ _ 0 and _ _ 2, the leading digit would have to be 0. This prevents it from being a 3-digit integer, so we don't consider them.