Luther made 12 pancakes for breakfast. His family has 8 people. How many more pancakes must he make for everyone to have a second pancake?
In order for everyone to have seconds, Luther must make 8 x 2 = 
<gadget id="calculator">8*2</gadget>
<output>16</output>
16 pancakes.
Luther must make another 16 - 12 = 
<gadget id="calculator">16-12</gadget>
<output>4</output>
4 pancakes.

<result>4</result>