There is a piece of wood, and you plan to saw it into 6 sections. It takes 5 minutes to saw each section. How many minutes will it take to saw all of them?
有一根木头，打算把它锯成6段，每锯开一处，需要5分钟，全部锯完需要多少分钟．
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<result>25</result>