Khan/khan-exercises — Issue #8754: Significant figures 1 - A decimal is NOT a didgit
Author: KhanBugz
Created: 2011-12-15 20:18:39+00:00
State: open
Labels: firefox, wrong-or-unclear, xp

You seem to be counting decimals as digits! All of the following could be significant, depending on the wording:

0.049162000
0.04916200
0.0491620
0.049162
.049162

The most comon would be:

0.049162 which is SEVEN significant digits and a decimal, not 8.

[significant_figures_1.html?seed=69&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/significant_figures_1.html?seed=69&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/significant_figures_1.html?seed=69&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%226%5C%22%22%2C11%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C4%5D%5D)

["6"]

Mozilla/5.0 (Windows NT 5.1; rv:6.0.2) Gecko/20100101 Firefox/6.0.2

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