There are two squares, the side length of the larger square is twice the side length of the smaller square, how many times the area of the larger square is the area of the smaller square
有两个正方形，大正方形的边长是小正方形边长的2倍，大正方形的面积是小正方形面积的多少倍
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">1 * 1</gadget>
<output>1</output>

<gadget id="calculator">4 / 1</gadget>
<output>4</output>

<result>4</result>