A pencil is about 17 centimeters long, and now 8 millimeters are used up, how many millimeters are left in this pencil?
一支铅笔长约17厘米，现在用去了8毫米，这支铅笔还剩多少毫米．
<gadget id="calculator">17 * 10</gadget>
<output>170</output>

<gadget id="calculator">170 - 8</gadget>
<output>162</output>

<result>162</result>