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It looks so wrong (sh.itjust.works)

submitted 2 weeks ago by sjmarf@sh.itjust.works to c/whitepeopletwitter@sh.itjust.works

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[–] PineRune@lemmy.world 13 points 2 weeks ago* (last edited 2 weeks ago) (3 children)

If it bothers your OCD, think of it more as (7x3)+(10x3)=17x3=51

[–] Cheradenine@sh.itjust.works 5 points 2 weeks ago (2 children)

Dude/ Dudette that's worse. 7x3=21, 10x3=30, 21+30=~~492~~ 51

That does less insane to the membrane

[–] JoMiran@lemmy.ml 6 points 2 weeks ago (1 children)

I see them as the same except that your way illustrates what his parentheses are doing.

[–] Cheradenine@sh.itjust.works 1 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

The way I see it the parentheses are good, it the 17x3 that hurts my brain.

It's already broken down, then gets more complicated by the 17x3. In my mind I now need to separate 17 into 10 and 7 then multiply them each by 3 and add them together, which is where we started in the first place.

Brains are different, that's how mine goes though.

[–] JoMiran@lemmy.ml 2 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

I understood that to be a reference to the original screenshot. Thus the two equal signs. It was a way to walk you through how the breakdown ties back in.
¯\_(ツ)_/¯

[–] Cheradenine@sh.itjust.works 2 points 2 weeks ago

Not disagreeing, and I upvoted you for a different perspective. I did not see it that way, though I do now.

Like I said, brains are different.

[–] ryedaft@sh.itjust.works 2 points 2 weeks ago

Nah, 45 + 6

153 + 23

[–] sugar_in_your_tea@sh.itjust.works 1 points 2 weeks ago

Or the way I do it:

3 * 20 = 60
60 - 51 = 9
20 - (9 / 3) = 17

So the factors are 17 and 3. I know 3 is a factor because 5+1=6, which is divisible by 3, so I just use a convenient multiple of 3 that's pretty close to the actual number to get the divisor.

I have young kids and they keep asking me to do crazy math problems while driving, so that's generally the trick I use.

[–] JoMiran@lemmy.ml 1 points 2 weeks ago

This is how I have always calculated in my head. It used to drive my mom and my teachers crazy when they asked me to verbalize my calculations. It was like I was hurting them somehow. I never understood why.