People always say math when they just mean arithmetic.
this post was submitted on 25 Jun 2026
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$7.83
My method:
- 42.17 + 8.00 = 50.17
- 8 - 1 = 7
- 0.17 - 0.02 = 0.15
- 0.85 + 0.15 = 1.00
- 0.85 - 0.02 = 0.83
Three cents to $42.20
Eighty cents to $43.00
Seven dollars to $50
Seven eighty-three!
my method: calculator
I used to do calculators for tips, but noticed my mental acuity slipping. I started calculating tips in my head to keep myself sharp
I expressed my displeasure of these tickets at a bar I work at to one of my coworkers. They then pointed out that in Toast POS you can just punch in the total bill and it generates the tip for you
TIL
Oh that's good to know, I used to do math and then realized I'm probably being an asshole and stopped.
MATH RETURNS BABY!
Remember math? It’s back, in pog form!
Oh I remember pogs. My brother's we're huge into them. I was just a bit too old for that fad to hit me. I was a Garbage Pail kid!
FYI, most places will just use the total if there's anything wrong with your math (assuming it's at least what you owe) so this is perfectly valid.
The addition is the hard part though, calculating the tip amount is easy. Can you write in just the tip amount and let them figure it out at the POS?
ω?
I know that constant. It has something to do with imaginary numbers if I remember correctly. Right?