A small pizza can gives 4 slices, and a large pizza gives 8 slices.  George purchased 3 small and 2 large pizzas.  George would like to eat 3 pieces.  His friend Bob would like to eat one more piece than George.  Susie will eat half as many as Bob.  Bill, Fred and Mark would each like 3 pieces.  How many slices of pizza will be left over?
George has 3 small pizzas * 4 slices = 
<gadget id="calculator">3*4</gadget>
<output>12</output>
12 pieces.
George also has 2 large pizzas * 8 slices = 
<gadget id="calculator">2*8</gadget>
<output>16</output>
16 slices.
Total, George has 12 + 16 slices = 
<gadget id="calculator">12+16</gadget>
<output>28</output>
28 slices of pizza.
Bob will eat 3 slices + 1 = 
<gadget id="calculator">3+1</gadget>
<output>4</output>
4 slices.
Susie will eat 1/2 * 4 slices = 
<gadget id="calculator">1/2*4</gadget>
<output>2</output>
2 slices.
Bob, Fred and Mark will eat in total 3 + 3 + 3 = 
<gadget id="calculator">3+3+3</gadget>
<output>9</output>
9 pieces.
Total slices of pizza eaten will be 3 + 4 + 2 + 9 = 
<gadget id="calculator">3+4+2+9</gadget>
<output>18</output>
18 pieces.
Total pizza slices remaining will be 28 pieces - 18 = 
<gadget id="calculator">28-18</gadget>
<output>10</output>
10 slices left.

<result>10</result>