The surface area of the earth is 5,100,0000 square kilometers, of which the ocean area accounts for 3,6100,0000 square kilometers. How many square kilometers is the ocean area larger than the land area?
地球的表面积是5,1000,0000平方千米，其中海洋面积占3,6100,0000平方千米．海洋面积比陆地面积多多少万平方千米？
<gadget id="calculator">361_000_000 - 149_000_000</gadget>
<output>212_000_000</output>

<gadget id="calculator">212_000_000 / 10_000</gadget>
<output>21_200</output>

<result>21_200</result>