Multiplication 6: Multiple Digit Numbers
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Uploader Comments (khanacademy)
Top Comments
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I LOVE THIS GUY IS SO AWSOME
11 months ago 7
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All Comments (18)
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know i understand :D
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I don't get it what are the answers?
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When doing the 99x88 Sum, Why when doing the first 9x8 does he put down the 2 and carry on the 7... I always though you carried on the smallest number and put down the largest.... That's really confusing me ;(
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THANK YOU MAN
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:) Thank You! :)
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Weird, it works in 480p on the website. . . .
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Thanks. I'm in the process of teaching my son these ideas, so thanks :)
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@Nile1147 i Agree with you
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I should see if this method can be generalized to any radix. It might be faster to do it in hex. ^^
This is kind of backwards of how I multiply in my head.
Ormaaj 2 years ago 2
To do it in Hex, you would have to memorize your 16 times tables in hex (and convert to and from decimal to hex). Would take up less space on the paper. Not clear if it would be easier.
khanacademy 2 years ago