Hannah brought $30 to the county fair. She spent half of it on rides and another $5 on dessert. How much, in dollars, is left?
She spent $30/2=$
<gadget id="calculator">30/2</gadget>
<output>15</output>
15 on rides.
She spent a total of $15+$5=$
<gadget id="calculator">15+5</gadget>
<output>20</output>
20 including dessert.
She has $30-$20=$
<gadget id="calculator">30-20</gadget>
<output>10</output>
10 left.

<result>10</result>