Yes-- DD's math classes have pretty much never required it. WE have-- once she got into algebra, I mean.

She could STILL hand in twelve step trig problems with nothing but an answer, however, given that the computer only cares about the result.

Sometimes, she does. She claims "I did it all on my calculator anyway-- I didn't have anything to write down." Which is usually bogus, btw, but often not worth arguing over if she's doing the problems right (mostly she is).

Schrödinger's cat walks into a bar. And doesn't.