Annika brought $50 to the town fair. She spent half of it on food and snacks, and an additional $10 for rides. How much, in dollars, is left?
She spent 50/2=$
<gadget id="calculator">50/2</gadget>
<output>25</output>
25 on the food.
Then 50-25-10=$
<gadget id="calculator">50-25-10</gadget>
<output>15</output>
15 are left.

<result>15</result>