On a moonless night, three fireflies danced in the evening breeze.  They were joined by four less than a dozen more fireflies, before two of the fireflies flew away.  How many fireflies remained?
Four less than a dozen is 12-4=
<gadget id="calculator">12-4</gadget>
<output>8</output>
8.
The three fireflies were joined by four less than a dozen more fireflies, for a total of 3+8=
<gadget id="calculator">3+8</gadget>
<output>11</output>
11 fireflies.
Two flew away, leaving 11-2=
<gadget id="calculator">11-2</gadget>
<output>9</output>
9 fireflies remaining.

<result>9</result>