A piece of wood is 24 meters long, and it is sawn into a section of 3 meters long. It takes 6 minutes to saw each section, how many minutes are used.
一根木料长24米，把它锯成3米长的一段．每锯一段要用6分钟，共用多少分钟．
<gadget id="calculator">24 / 3</gadget>
<output>8</output>

<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">7 * 6</gadget>
<output>42</output>

<result>42</result>