Janelle plans to buy three boxes of popcorn at the movies for herself and two friends. If each box costs $1.95, how much change will she receive when she pays with a ten-dollar bill?
She will receive
So since she is buying three boxes of popcorn, you multiply it by the price of the popcorn as shown below:
You subtract the amount she given to the person then the cost of three popcorn as shown below:
So she receives