Khan/khan-exercises — Issue #9705: Arithmetic challenge - Arithmetic challenge
Author: KhanBugz
Created: 2011-12-28 17:09:22+00:00
State: open
Labels: safari, wrong-or-unclear

Reporter: allum@tds.net

wrong answer cause by a math error in addition after multiplycation has occured
.
. when the hundreds collumn was added up the correct answer was 20 hundreds - write down the zero
carry the 2 to the thousands collumn -
it appears that the 2 carried forward was never added in !

[arithmetic_challenge.html?seed=176&problem=3 (multiplying_decimals)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/arithmetic_challenge.html?seed=176&problem=3&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/arithmetic_challenge.html?seed=176&problem=3&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22754.048%5C%22%22%2C99%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22764.048%5C%22%22%2C24%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22764.048%5C%22%22%2C37%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C5%5D%2C%5B%22hint-activity%22%2C%220%22%2C6%5D%2C%5B%22hint-activity%22%2C%220%22%2C6%5D%2C%5B%22hint-activity%22%2C%220%22%2C7%5D%2C%5B%22hint-activity%22%2C%220%22%2C8%5D%2C%5B%22hint-activity%22%2C%220%22%2C9%5D%2C%5B%22hint-activity%22%2C%220%22%2C10%5D%2C%5B%22hint-activity%22%2C%220%22%2C10%5D%5D)

["754.048","764.048","764.048"]

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