A piece of wood is 10 meters long, and it should be divided into 10 equal parts. It takes 8 minutes to saw the next section, how many minutes will it take to complete the saw.
一根木头长10米，要把它平均分成10段．每锯下一段需要8分钟，锯完一共需要多少分钟．
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">8 * 9</gadget>
<output>72</output>

<result>72</result>