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Fucking math... (lemmy.dbzer0.com)
submitted 1 month ago by Stamets@lemmy.dbzer0.com to c/science_memes@mander.xyz
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[-] Korhaka@sopuli.xyz 10 points 1 month ago

Even the first one, 0.75 doubled and then doubled again is hard?

[-] affiliate@lemmy.world 30 points 1 month ago

at this point in my life, as somebody with multiple math degrees, if i ever come across a situation where i need to multiply or divide numbers and one of them is bigger than 12, im going to use a calculator.

[-] darvocet@infosec.pub 9 points 1 month ago

Look at Mr big brain over here who learned his times tables. Sure hope nobody takes his lunch money.

[-] Objection@lemmy.ml 4 points 1 month ago

Shitty Math Pro Tip: If you ever have to work with numbers larger than 10, convert it to scientific notation and then round to a single significant figure.

? = 0.04 x 75
? = (4 x 10^-2) x (7.5 x 10^1)
? ~= (4 x 10^-2) x (8 x 10^1)
? = 4 x 8 x 10^-1
? = 32 x 10^-1
? = 3.2
? ~= 3

See how easy that is? Here's another one:

? = 12 x 12
? = (1.2 x 10^1) x (1.2 x 10^1)
? ~= (1 x 10^1) x (1 x 10^1)
? = 1 x 10^2
? = 100

Bam, lock it in.

[-] Korhaka@sopuli.xyz 2 points 1 month ago

Depends on the sum though, like if its how many pizzas to buy you should round up.

this post was submitted on 20 Oct 2025
792 points (98.1% liked)

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