How many squares of 2 cm can be cut from a rectangle with a length of 6 cm and a width of 4 cm?
一个长为6cm、宽为4cm的长方形，可以剪多少个边长为2cm的正方形．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

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

<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<result>6</result>