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crazy russian math technique - video - Page 2

post #16 of 17
Quote:
Originally Posted by faustian bargain
that's like magic. i wonder if i can do it faster than longhand multiplication...or if i can do it in my head. i'm going to practice and find out.

yep, longhand is faster. you still have to do multiple steps of multiplying and adding, especially with larger numbers. counting all the intersections is just silly, unless you really never learned your multiplication tables.
post #17 of 17
Quote:
Originally Posted by faustian bargain
yep, longhand is faster. you still have to do multiple steps of multiplying and adding, especially with larger numbers. counting all the intersections is just silly, unless you really never learned your multiplication tables.


agreed. This works well for numbers that contain smaller digits. The first example I tried was something like 59 x 67. What a pain in the ass!
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