Egyptian Math
 

That was an interesting watch, didn't know I could use binary arithmetic like that.

Works like a charm. I feel 100% smarter.

why didn't they teach me shit like this in highschool?
almost failed math 157 at sfu for fucks sakes :lol

that was good, should start using that method haha

how would you divide 100 divided by 3?

so remainders don't work?

That is kind of misleading as he was using whole numbers and a number that is easily doubled... being 25. Had that been a number that was odd like say 17 the number would not so easily have been doubled and would have required more thought to do the calculations.

Berz out.

^ very true. Although it's not the most efficient way to do multiplication it's still a very easy concept to comprehend to. I wonder what the math teachers would be like if a few elementary kids did this on tests and shit lol. Would they get marks off for not showing "work"..

yeah, just testing this myself, I already got stumped cause I gave myself a random question off the top of my head. 22x37...
double 37... I would have to make another binary chart to figure out 37x2 first and so forth :lol

So doubling 37 = 74, 148, 296, 592

The answer to my qusetion is 814... but adding the "circled numbers", 74 + 148 + 592
too a while to do own it's own.

Definitely not faster than the method we learnt in elementary school.

Here's another

interesting concept. i like watching these outside the box vids

if u cant double a number like 17.. consider 3rd grade again.

100 / 3
1 3
2 6
4 12
8 24
16 48
32 96

96+3 = 99 > 1 is remainder
100/3=32+1=33 remainder 1