A piece of wood is 3 meters long, and after sawing it into 4 pieces of the same length, there are still 2 decimeters left. If these 4 pieces of wood are used to make the legs of the square table, what is the approximate height of the square table?
一根木料长3米，把它锯成同样长的4根后还剩下2分米．如果用这4根木料来做方桌的桌脚，这张方桌的高大约是多少？
<gadget id="calculator">3 * 10</gadget>
<output>30</output>

<gadget id="calculator">30 - 2</gadget>
<output>28</output>

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

<result>7</result>