A rectangular paddy field is 50 meters long and 32 meters wide. Now we need to apply a kind of chemical fertilizer. According to the standard of 50 grams per square meter, how many kilograms of chemical fertilizer is needed for the whole paddy field?
一块长方形水田，长50米，宽32米，现在要施放一种化肥，按每平方米50克的标准，整块水田要多少千克化肥？
<gadget id="calculator">50 / 1_000</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">50 * 32 * (1/20)</gadget>
<output>80</output>

<result>80</result>