/sci/ - Science & Math

>>9522436
And all the squares from 1 to 100
Amazingly helpful

>>9522436
>10x10
in grade 3 we had to learn it 12x12 and yes, i have never forgotten and can recall any combination

>>9522455
this but sometimes I do have to think about the 12s.

>>9522436
I can blurt the entire multiplication table under half a second - SDFA! TOO LATE !

>>9522455
Same but it's basically useless. Shouldn't be taught except in a way that illuminates the patterns in the table. Not rote memorisation to no end.

>>9522489
meh only 1-9 matters. 11, 12 and beyond are composites

>>9522517
how the fuck do you expect people to multiply large numbers if they have to think through every single one of these

>>9522436
jesus fuck yes, why? are americans even incapable of doing this? or why is this even a question?

>>9522455
In grade 3 we had to till 20×12 and yeah I pretty much remember it.

>>9522436
Got an A in real analysis and even so combinations like 7x6 and 7x8 don't come immediately to me lel

>>9522651
Break it down per digit or factor it in to terms of multiples you've memorized. add em up. done.

>>9522656
People can do higher math without basic multiplication table 100% memorized but they'll have to reach for the calculator every microsecond like a retard.

>>9522679
yeah I mean if you HAVEN'T memorized them because you've been exposed to education 2.0 where the goal isn't to be able to do anything but just to understand what you're doing

>>9522436
Indeed. I consider the 9's to be my speciality.

>>9522436
No... Am I a brainlet?

>>9522436
Do people actually don't?

>>9522436
Fun: 21*63 without a calculator :3

>>9522879
1260+63=1323

>>9522436
No.

t. MS in Math

Yes, I'm not a moron

>>9522879

(20+1)(60+3)
1200+60+60+3
1323

You have to remember all the trig identities and log rules as well. The level of ass hurt you will receive in college not knowing them will be amazing.

>>9522438
I thought I was the only one

squares 1-50 (50-100 isn't so useful for me as I use identities to deduce them, and this allows me to compute easily squares of 3-digit numbers)
times tables 1-30 (got bored after that)

>>9522684
reach out lol, I'm working on my computer and have a CAS for quick and easy access...

I can recall about 60%. never actually took time to memorize it

I have 12x12 memorized just out of practice, not strict memorization.

>>9523105
I know that

Trigs are easier because you can literally draw out unit circle triangles or derive from euler formula.

But multiplication table is rote memorization

>>9522436

What are you, eight years old? With downs syndrome?

>>9522436
If you can't, something is seriously wrong.