Question

Multiply: 62 and 21 : without actually multiplying then together.

Answer 1

haha whaa....?!?! O_O i am very confused by this.

Answer 2

modify 62 and 21 to get the product, but dont multiply them directly

Answer 3

62+62+62+62+62+62+62+62+62+62+62+62+62+62+62+62+62+62+62+62+62=1302

Answer 4

lol ... well, i spose thats according to the rules; but something a bit more elegant

Answer 5

its an ancient method dating back to egypt, even tho every culture claims it as their own invention

Answer 6

it better described by using a number that is a product of 2^n; like 64 i spose

try 64 and 21 :)

Answer 7

the idea is to halve one of them and double the other

Answer 8

64 21
32 42
16 84
8 168
4 236
2 472
1 944

Answer 9

64*21 = 944

Answer 10

decomposition ?

Answer 11

it works with 62 as well, but you have to do something with the "1" that comes out of the odd division by 2

Answer 12

62
31
15 +1
7 + 1
3 + 1
1 + 1

but i cant recall what to do with the +1s :)

Answer 13

http://en.wikipedia.org/wiki/Ancient_Egyptian_multiplication

Answer 14

64
21
-----
64
128
-------
1344 ... gonna have to look it up again

Answer 15

thats the one :)

Answer 16

(60+2)(20+1) and then FOIL!
1200+60+40+2
1302

Answer 17

hehe yay for creativity!

Answer 18

foil is still mutliplying them together; its a good call, but sleights the rules :)

Answer 19

ah but it's not directly.

Answer 20

and i never multiplied 62 and 21 together anywhere in that

Answer 21

elizated, the ancient cultures fought over who invented the decomposition method - you better take out a patent on your invention to make sure you get credit for it :)

Answer 22

lol .... patent the foil :)

Answer 23

ill patent the iolf

Answer 24

It's not patenting the FOIL - it's this specific application of the FOIL to solve your question :)

Answer 25

let me know when you get word of the new method in the news :)

Answer 26

Multiply like egyptian ...