How many minutes does it take for the minute hand to move from the number 8 to the number 10?
分针从数字8走到数字10，需要多少分钟．
<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<result>10</result>