Khan/khan-exercises — Issue #8863: Adding and subtracting decimals word problems - Sometimes allows $ in answer, sometimes marks it wrong
Author: KhanBugz
Created: 2011-12-17 03:46:01+00:00
State: open
Labels: firefox, wrong-or-unclear, xp

Reporter: nadzy.wilzod@gmail.com

Sometimes including the dollar sign is acceptable, sometimes it gets the answer marked wrong, and there's no way to tell from the question.

[adding_and_subtracting_decimals_word_problems.html?seed=166&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_decimals_word_problems.html?seed=166&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_decimals_word_problems.html?seed=166&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22%2412.86%5C%22%22%2C31%5D%2C%5B%22hint-activity%22%2C%220%22%2C104%5D%2C%5B%22hint-activity%22%2C%220%22%2C107%5D%2C%5B%22hint-activity%22%2C%220%22%2C108%5D%2C%5B%22hint-activity%22%2C%220%22%2C112%5D%2C%5B%22hint-activity%22%2C%220%22%2C113%5D%2C%5B%22hint-activity%22%2C%220%22%2C114%5D%2C%5B%22hint-activity%22%2C%220%22%2C115%5D%2C%5B%22hint-activity%22%2C%220%22%2C116%5D%2C%5B%22hint-activity%22%2C%220%22%2C118%5D%5D)

["$12.86"]

Mozilla/5.0 (Windows NT 5.1; rv:8.0.1) Gecko/20100101 Firefox/8.0.1

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