## Thinking Mathematically (6th Edition)

$1~g = 1000~mg$ $1~oz \approx 28~g$ We can convert 100 mg to units of ounces. $100~mg = \frac{100~mg}{1}\times \frac{1~g}{1000~mg}\times \frac{1~oz}{28~g}$ $100~mg = 0.0036~oz$ We can see that the original statement is false. A 100-mg object weighs less than a 2-ounce object.