Ann, Bill, Cate, and Dale each buy personal pan pizzas cut into 4 pieces. If Bill and Dale eat 50% of their pizzas and Ann and Cate eat 75% of the pizzas, how many pizza pieces are left uneaten?
In total, there are 4 x 4 = 
<gadget id="calculator">4*4</gadget>
<output>16</output>
16 pizza pieces.
Bill and Dale eat 2 x 4 x 50% = 
<gadget id="calculator">2*4*50*.01</gadget>
<output>4</output>
4 pieces.
Ann and Cate eat 2 x 4 x 75% = 
<gadget id="calculator">2*4*75*.01</gadget>
<output>6</output>
6 pieces.
The four of them eat 4 + 6 = 
<gadget id="calculator">4+6</gadget>
<output>10</output>
10 pieces.
There are 16 - 10 = 
<gadget id="calculator">16-10</gadget>
<output>6</output>
6 pizza pieces uneaten.

<result>6</result>