If the numbers were on a single line ... you do math (Order of Operations) from left to right. But if the numbers are stacked ... you do them from right to left.
With my stupid other answer that I posted without reading CAREFULLY other people's answers, I'm just going to put a hot guy gif here for no reason. Every problem should end with this guy. :)
This post was edited by WelbyQuentin at June 23, 2018 1:58 PM MDT