My kids were talking about pemdas and I'm like... Nooo it's order of difficulty/order you are taught how to do the math. If I try to remember stuff with acronyms I spend the whole test trying to remember the acronym and if I happen to remember that I spend the whole time trying to remember what the letters stand for. That's if I actually disciplined myself to learn the acronym to start with.
"order of difficulty/order you are taught how to do the math"
Parentheses go first, obviously (you probably even learn it last since it's part of the "what order" lesson)
Exponents go second because they are the last thing you learned in math of the group (and are "hardest")
Division and multiplication are next, also next in line of learning/hardness scale
Addition and subtraction you learned first so you are going to do them last.
It's like peeling an onion, the order you learn them in is covering up the center answer so you have to peel each layer to get to the answer. You can't do addition first because multiplication and division cover that layer up.
((5-3+(30)) + (8+2-5)) x 2
((2+(30)) + (8+2-5)) x 2
((32) + (8+2-5)) x 2
((32) + (5)) x 2
37 x 2
30 x 2 + 7 x 2
60 + 14
Here it is, line by line.
Perfect down to the last rule.
Freude, schöner Götterfunken Tochter aus Elysium, Wir betreten feuertrunken, Himmlische, dein Heiligtum! Deine Zauber binden wieder Was die Mode streng geteilt; Alle Menschen werden Brüder, Wo dein sanfter Flügel weilt.
look at math problem... vaguely attempt solving math problem until I realize that it's boring because I don't even know WHY I'm solving it (I beleive in story problems and story problems only)... conclude "fuck it!" and check out someone else's answer
this is pretty close to my method except I stop trying to solve it outright in the exact moment after I see the math problem.
Like OP's question, why would I solve that at home? mental masturbation? That's like normal masturbation with an iron claw (personally).