Our country is a country with relatively poor water resources, students should save water. If each person saves 0.3 cubic meters of water per month, how many cubic meters of water can our class save in a year?
我国是水资源比较贫乏的国家，同学们要节约用水．如果每人每月节约0.3立方米的水，我们班一年能节约水多少立方米？
<gadget id="calculator">0.3 * 50 * 12</gadget>
<output>180</output>

<result>180</result>