If it takes 18 minutes to saw a stick into 7 pieces, how many minutes will it take to saw it into 100 pieces?
一根木棒，如果锯成7段要用18分钟，那么锯成100段需要多少分钟？
<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">18 / 6</gadget>
<output>3</output>

<gadget id="calculator">100 - 1</gadget>
<output>99</output>

<gadget id="calculator">3 * 99</gadget>
<output>297</output>

<result>297</result>