Khan/khan-exercises — Issue #15294: Adding and subtracting decimals word problems - significant figures in word problems
Author: KhanBugz
Created: 2012-03-03 14:54:17+00:00
State: open
Labels: chrome, other, xp

Reporter: knocksonce@gmail.com

Word problem: 9.3" rain - 2.22" rain in adding & subtacting decimals. Can't tell from word problem whether measured to nearest tenth or hundredth, but answer accepted was to nearest hundredth. Just taught a wrong principle for real life.

[adding_and_subtracting_decimals_word_problems.html?seed=91&problem=twinWeight](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_decimals_word_problems.html?seed=91&problem=twinWeight&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_decimals_word_problems.html?seed=91&problem=twinWeight&debug&activity=%5B%5D)

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Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11

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