A rectangle is 12 meters long and 4 meters more than its width, what is its area in square meters?
一个长方形，长12米，比宽多4米，它的面积是多少平方米．
<gadget id="calculator">12 - 4</gadget>
<output>8</output>

<gadget id="calculator">8 * 12</gadget>
<output>96</output>

<result>96</result>