Xiao Ming uses 4 small squares with a side length of 2 cm to form a large rectangle. What is its area?
小明用4个边长2厘米的小正方形拼成一个大长方形，它的面积是多少．
<gadget id="calculator">2 * 4 * 2</gadget>
<output>16</output>

<result>16</result>