Jay bought a book for $25, a pen for $4, and a ruler for $1. He paid with a fifty-dollar bill. How much change, in dollars, did Jay get?
Jay spent 25+4+1=
<gadget id="calculator">25+4+1</gadget>
<output>30</output>
30 dollars.
He received 50-30=
<gadget id="calculator">50-30</gadget>
<output>20</output>
20 dollars in change.

<result>20</result>