Master Wang cuts an 18-meter-long iron wire into 3-meter-long pieces. It takes 8 minutes to cut a section. How long does it take to cut all the pieces?
王师傅把一根长18米的铁丝截成3米长的小段，截一段需要8分钟，全部截完需要多少分钟？
<gadget id="calculator">18 / 3</gadget>
<output>6</output>

<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">5 * 8</gadget>
<output>40</output>

<result>40</result>