## Thinking Mathematically (6th Edition)

We know that 1 g = 10 dg We know that 1 g = 1000 mg We can convert 7.4 dg to units of mg. $7.4~dg = \frac{7.4~dg}{1}\times \frac{1~g}{10~dg}\times \frac{1000~mg}{1~g}$ $7.4~dg = 740~mg$