If 20 sheets of paper are stacked, the thickness is 1 mm, and if 100 sheets are stacked, what is the thickness in mm?
20张纸叠起来厚1毫米，100张叠起来厚多少毫米．
<gadget id="calculator">100 / 20</gadget>
<output>5</output>

<gadget id="calculator">5 * 1</gadget>
<output>5</output>

<result>5</result>