It takes 3 minutes to saw a piece of wood into 6 small pieces, how many minutes will it take to cut each piece?
把一根木头锯成6小段，每锯开一处需要花3分钟，全部需要多少分钟？
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<result>15</result>