It took Master Wang 8 minutes to saw a piece of wood into 3 sections. How many minutes would it take to saw this piece of wood into 8 sections?
王师傅把一根木头锯成3段用了8分钟，如果这根木头锯成8段，需要多少分钟．
<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">7 * 4</gadget>
<output>28</output>

<result>28</result>