real world examples of numbers with 3 decimal places
skwiddor: RDA's and food labellinghttp://en.wikipedia.org/wiki/Reference_Daily_IntakeThen you can hide the fact they are doing math while teaching them about healthy eating.Incorporate things like http://www.sugarstacks.com/
and http://www.wisegeek.com/what-does-200-calories-look-like.htm
and you can have some interesting projects going