Comment Re:It should be: 4+3+2=x+2 (Solve for x) (Score 1) 1268
key right there is you said "memorize." that's what is wrong, right there.
when faced with non-standard notation we should be able to just figure it out.
And there's always the option to take 3 halfway broken ones, and make 2 working ones out of those.
That's some fuzzy math.
The earth is like a tiny grain of sand, only much, much heavier.