Lucas went to the store with $20 and needed to buy 3 avocados that cost $2 each. How much change does he bring home?
The avocados cost 6 because 3 x 2 = 
<gadget id="calculator">3*2</gadget>
<output>6</output>
6.
He brings home $4 in change because 20 - 6 =
<gadget id="calculator">20-6</gadget>
<output>14</output>
14.

<result>14</result>