There are two wooden boards, each 80 cm long, and the length where they are nailed together is 10 cm. What is the total length after nailing?
有两块木板各长80厘米，钉在一起的地方长10厘米，钉好后共长多少厘米？
<gadget id="calculator">80 * 2</gadget>
<output>160</output>

<gadget id="calculator">160 - 10</gadget>
<output>150</output>

<result>150</result>