A book of 100 sheets has a total thickness of 2.2 cm. How many millimeters is each paper thick?
一本书100张纸，总厚度是2.2厘米．每张纸厚多少毫米？
<gadget id="calculator">2.2 / 100</gadget>
<output>0.022</output>

<gadget id="calculator">0.022 * 10</gadget>
<output>0.22</output>

<result>0.22</result>