There are 6 girls in the park. If there are twice the number of boys in the park, how many kids are in the park?
There are 6 girls x 2 boys/girl = 
<gadget id="calculator">6*2</gadget>
<output>12</output>
12 boys in the park.
In total there are 6 girls + 12 boys = 
<gadget id="calculator">6+12</gadget>
<output>18</output>
18 kids in the park.

<result>18</result>