Number of Doses

You can solve most of the calculations involving number of doses by using your common sense. For example, if you know that a single dose of a substance weighs 100 milligrams and you need 10 of these doses, you can easily work out that you need 1000 milligrams - or 1 gram - of the substance.

However, there is an equation you can use. What do you think the equation is? Drag the smaller boxes below to the big box to form the equation.