A water tank with a bottom length of 10dm and a width of 8dm contains 360 liters of water. When a stone is put into the water tank, the water level rises to 6dm. What is the volume of the stone?
一个底面长10dm，宽8dm的水箱内装水360升，当把一块石头放入水箱后，水位上升到6dm，这块石块体积是多少？
<gadget id="calculator">10 * 8 * 6</gadget>
<output>480</output>

<gadget id="calculator">480 - 360</gadget>
<output>120</output>

<result>120</result>