Tina made a large pan of brownies and cut it into 24 pieces.  She had one with lunch and dinner every day for 5 days.  Her husband snagged one per day for 5 days to take to work.  They shared 4 with dinner guests.  How many brownies were left?
Tina ate one twice a day for 5 days so 2*5 = 
<gadget id="calculator">1*2*5</gadget>
<output>10</output>
10.
Her husband at 1 per day for 5 days so 1*5 = 
<gadget id="calculator">1*5</gadget>
<output>5</output>
5.
She made 24, ate 10, her husband ate 5 and the guests ate 4 so 24-10-5-4 = 
<gadget id="calculator">24-10-5-4</gadget>
<output>5</output>
5 brownies left.

<result>5</result>