Khan/khan-exercises — Issue #11406: Significant figures 1 - Significant Numbers 1
Author: KhanBugz
Created: 2012-01-17 05:08:08+00:00
State: open
Labels: firefox, snowleo, wrong-or-unclear

Reporter: bookmangh@comcast.net

The answers are sometimes wrong, usually wrong. The answers are not even wrong in a consistent way. For instance: 0.010 has 2 significant numbers. The first 0 is meaningless as is the last. The problem is the answer comes up 2. 3 and 4 for essentially the same problems. Please fix this problem. Doing a few of the problems will illustrate the problem better than I am explaining it.

[significant_figures_1.html?seed=11&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/significant_figures_1.html?seed=11&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/significant_figures_1.html?seed=11&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%222%5C%22%22%2C4%5D%5D)

["2"]

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10

MathJax is loaded, ready, queue length: 0