“America First” Math 

When the US is toying with the idea of imposing exorbitant tariffs on foreign publishers, which would make it hard for them to ship their wallet-friendly, brain-unfriendly math titles to American homeschoolers, students, and teachers.

A number of hardcore Trumpublicans want their senators to push for an “America First” math bill to protect local authors from being outwitted by their foreign counterparts, whose titles cost a fraction of most dear inch-deep-mile-wide US math textbooks.

“America First” Math by MathPlus July 11, 2021

Singapore Math Going Endemic 

When most K–12 Singapore math writers would find it almost irresistible not to set questions on Covid-19 and its variants, masks, vaccines, and lockdowns, by adding some context to their content in their new manuscripts, unless their publishers think that it is morbid or a bad omen to do so, by rationalizing that the product of two negatives (people’s fear of math and of the virus) is not a positive in this case.

As Singapore reluctantly lives with Covid, it’s understandable that those who had lost loved ones to Covid-19 have reservations about Singapore math going endemic in this new normal.

Singapore Math Going Endemic by MathPlus November 4, 2021

can math 

The quick mental math you do to find out how much Mountain Dew costs per can when it is on sale.

It was five dollars for five twelve-packs. I did the quick can math and figured out it was about eight cents per can!

can math by Ace and Deuce November 28, 2005

Casino Math 

It is the math used for winnings in casinos that does not take into account of how much was spent to win it..

Person #1 "I won $100 last night" Person #2 "yea, but you spent $300 to win it, that is casino math"

Casino Math by Spuds McKensy April 1, 2011

rag math 

Calculating when your period is going to be to plan for future vacations.

Bob: Hey, let's go camping for Labor Day weekend.
Katie: hmmm, hang on let me look at the calendar. *counting weeks*
Bob: what are you doing?
Katie: Rag math! Gotta make sure Aunt Flo won't be visiting before I agree to the trip.

rag math by Biggins McGee August 31, 2016

spaghetti math 

Math so easy and 'thin' even the babies slurping up the metaphorical spaghetti can comprehend it. just like they can eat the spaghetti. because its easy as fuck to digest.
examples of this include: Further math and any math below 10th grade level.

Person 1 "I got 90% on my last test!" Person 2 "yeah but you do spaghetti math"

spaghetti math by School wizzard March 22, 2017

dumb math 

Using simple math to solve something more advanced.

9x9=81
9x8=?
81-9=72
Dumb math

dumb math by Crispycream December 7, 2017