Cut a rectangular piece of paper 10 cm wide and 8 cm wide into a square with the largest area, what is the area of the smaller rectangle cut out in square centimeters?
将一张10厘米，宽8厘米的长方形纸片剪成一个面积最大的正方形，那么剪去的小长方形的面积是多少平方厘米．
<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<result>16</result>