Khan/khan-exercises — pull request #55948 by petercollingridge (2013-07-25 15:25:17+00:00)
Title: Converting fractions to decimals 0.5

Converting fractions where the denominator is 10 or 100 into a decimal. Hints based on Understanding moving the decimal place.
For https://trello.com/c/dvnHwJ9A/133-converting-fractions-to-decimals-0-5