If the length of a rectangle is 8 cm and its width is 3 cm, what is the area of the rectangle?
一个长方形的长是8厘米，比宽多3厘米，这个长方形的面积是多少平方厘米．
<gadget id="calculator">8 - 3</gadget>
<output>5</output>

<gadget id="calculator">8 * 5</gadget>
<output>40</output>

<result>40</result>