Make some long. Width. Cuboid wooden blocks whose heights are 10cm, 5cm, and 2cm are assembled into a cube.
把一些长．宽．高分别是10cm.5cm.2cm的长方体木块，拼成一个正方体木块，最少需要多少个这样的长方体．
<gadget id="calculator">10 * 5 * 2</gadget>
<output>100</output>

<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">10 * 10 * (1/10)</gadget>
<output>10</output>

<result>10</result>