Xiaoming's house saves 500 kilograms of water a month, how many tons of water can be saved in 2 months
小明家一个月节约用水500千克，2个月可以节约用水多少吨
<gadget id="calculator">500 / 1_000</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * 2</gadget>
<output>1</output>

<result>1</result>