User blog comment:Noeinstein777/Why KA?/@comment-24808864-20140706165529/@comment-24808864-20140708010025

I had another example today... while doing "dividing decimals 4" I noticed that it was needed to move the decimal point in the divisor, which moves the decimal place in the dividend.

On the exercise page I try to explain the mathematics behind why this is the case (in a sense it is multiplying a fraction by one). I would like to go back and make better explanations on as many exercies as I can, but I am more interested in getting a draft of the exercises out at this time.

Here is the exercise I am referring to http://khanacademy.wikia.com/wiki/Dividing_decimals_4