The girl scouts earned $30 total from selling delicious cookies. They want to go to the pool. It will cost them $2.50 per person to go and 10 people are going. What is the amount left?
The girls paid $2.50/person * 10 people = $
<gadget id="calculator">2.5*10</gadget>
<output>25</output>
25.
The girls have $30 - $25 = $
<gadget id="calculator">30-25</gadget>
<output>5</output>
5 left.

<result>5</result>