The volume of this bottle is 500 milliliters. The crow put 32 small stones into the bottle. The water in the bottle just did not overflow. The volume of each stone is about 5 cubic centimeters. Do you know the approximate amount of water in the bottle?
这个瓶子的容积是500毫升，乌鸦往瓶子里放了32块小石子，瓶内水刚好没溢出，每块石子的体积约是5立方厘米，你知道瓶子里原来大约有多少水吗？
<gadget id="calculator">32 * 5</gadget>
<output>160</output>

<gadget id="calculator">500 - 160</gadget>
<output>340</output>

<result>340</result>