On a TI-83/89 scientific calculator, pressing the 'MATH' button and then the '9' button prompts a function that enables the user to find the answer to a type of problem called a definite integral within a few keystrokes. The alternative to this is doing it all by hand, which is very time-consuming/tedious. So, by simply using "MATH-9" you save yourself some time and a headache. This can be loosely applied to situations in life that require work, but whoever is supposed to be doing that work is lazy/uninterested so they opt out of it by finding a simple alternative.
Bob: Ugh, my girlfriend was bugging me to mow the lawn all day!
Charlie: So did you give in or what?
Bob: Nah, I just MATH-9'd that shit and paid some neighborhood kid to do it.
Charlie: So did you give in or what?
Bob: Nah, I just MATH-9'd that shit and paid some neighborhood kid to do it.
by Rutherford Jones June 29, 2009

by vanderplonk October 3, 2007

by FallenShai December 26, 2020

It was five dollars for five twelve-packs. I did the quick can math and figured out it was about eight cents per can!
by Ace and Deuce November 28, 2005

Bronx math is a shitty school mad ghetto so people who went there end up working at McDonald’s on Burger King they be having mad fights (it’s funny tho) they be skipping class we be smoking in the bathroom getting litty nah let me stop but are teachers be sucking mad dick like always 🤣 but that school is trash Odee
by Blood4L April 10, 2019

German math textbooks that were used during the reign of Adolf Hitler in the Second World War, whose word problems often mockingly or sickeningly demonize the “undesirables.”
One 1941 Nazi math question is: “Every day, the state spends RM 6 on one cripple; RM 4 1/2on one mentally ill person; RM 5 1/2 on one deaf and dumb person; RM 5 3/5 on one feeble-minded person; RM 3 on one alcoholic; RM 4 4/5 on one pupil in care; RM 2 1/10 on one pupil at a special school; and RM 9/20 for one pupil at a normal school. Calculate the expenditure of the state for one pupil in a special school and one pupil in an ordinary school over eight years and state the amount of higher cost engendered by the special school pupil.”
by MathPlus December 29, 2020

Teacher: "So, 2(9+x)=27, so ..."
Student 1: "NNNNNGGHHHH"
Student 2: "The fuck"
Student 3: "Dont question it, she has a math fetish"
Student 1: "NNNNNGGHHHH"
Student 2: "The fuck"
Student 3: "Dont question it, she has a math fetish"
by POTUS Official May 8, 2023
