A block of iron with a volume of 20,000 cubic centimeters sinks into a cuboid container with a length of 5 decimeters and a width of 2 decimeters. How many decimeters does the water level rise?
一块体积为20000立方厘米的铁块，沉入一个长5分米，宽2分米的长方体容器中，水面上升了多少分米？
<gadget id="calculator">2 * 10</gadget>
<output>20</output>

<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">20 / 10</gadget>
<output>2</output>

<result>2</result>