Khan/khan-exercises — Issue #12075: Significant figures 1 - significant figures
Author: KhanBugz
Created: 2012-01-25 12:00:03+00:00
State: open
Labels: ie8, wrong-or-unclear, xp

significant figures are all the non-zero numbers untill you reach the first non-zero figure, then each number after is significant. i.e. in the number 1240 there are 4 significant figures, the zero is signiificant here

[significant_figures_1.html?seed=100&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/significant_figures_1.html?seed=100&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/significant_figures_1.html?seed=100&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%225%5C%22%22%2C7%5D%2C%5B%22hint-activity%22%2C%220%22%2C10%5D%2C%5B%22hint-activity%22%2C%220%22%2C15%5D%2C%5B%22hint-activity%22%2C%220%22%2C17%5D%2C%5B%22hint-activity%22%2C%220%22%2C22%5D%5D)

["5"]

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