To welcome the Olympic Games, the park bought flowers for decoration, bought 300 pots of roses, and bought 20 more pots of roses than roses (2/3), how many pots of roses did you buy?
为迎接奥运会，公园买花装饰，买了300盆月季花，买的玫瑰花比月季的(2/3)多20盆，玫瑰花买了多少盆．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">300 * (2/3)</gadget>
<output>200</output>

<gadget id="calculator">200 + 20</gadget>
<output>220</output>

<result>220</result>