A bucket, measured from the inside, has a bottom area of 25dm**2 and a height of 4dm. How many liters of water can this bucket hold?
一个水桶，从里面量，底面积是25dm**2，高是4dm，这个水桶能盛水多少升．
<gadget id="calculator">25 * 4</gadget>
<output>100</output>

<result>100</result>