It takes 3 minutes on average to cut a 10-meter-long piece of wood into 1-meter-long pieces. How many minutes does it take to finish cutting?
要把10米长的木头锯成1米长的小段，平均每截成一段要3分钟，截完要多少分钟？
<gadget id="calculator">10 / 1</gadget>
<output>10</output>

<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">9 * 3</gadget>
<output>27</output>

<result>27</result>