It takes 6 minutes to saw a piece of wood into 5 sections, how many minutes in total.
把一根木头锯成5段，每据一段要6分钟，共要多少分钟．
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<result>24</result>