Khan/khan-exercises — Issue #4523: Significant figures 1 - Significant figures 1 is wrong
Author: KhanBugz
Created: 2011-10-18 04:42:32+00:00
State: open
Labels: safari, snowleo

Reporter: parampreet.sekhon@gmail.com

I am trying to do the exercise titled "Significant figures 1". This exercise has a problem. For example:

Question: How many significant figures does 1.260 have?
Apparently the answer is 4. Why not 3? I guess it is 4 because the answer has been measured down to the thousandth. I am with it. It makes sense.

But have a look at another one.

Question: How many significant figures does 0.054262 have?
Apparently the correct answer is 5! Why is it not 6? if I were to use the logic for the question earlier the answer would be 6, because the measurement has been taken to 6th place after the decimal.

I wanted to point out the problem. Please review.

Great work, by the way. I recommend this site to everyone I know.

Cheers,
Parampreet Sekhon

[significant_figures_1.html?seed=141&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/significant_figures_1.html?seed=141&problem=0&debug)

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