LaTara,
If we know the total price of the yarn and the number of yards, we can calculate the price per yard by dividing.
$4.49
----------- = $0.03 per yard
136 yards
Sometimes the label can help you to determine if you multiply or divide if it's not obvious to you.
per yard using mathematical symbols can look like /yard, suggesting the yards should be in the denominator.
Lynn S.
09/26/17