There are 180 boys and 160 girls who go on an autumn outing. Each person has a bottle of mineral water, how many bottles of mineral water should be prepared in total.
同学们去秋游，男生有180人，女生有160人．每人一瓶矿泉水，一共需要准备多少瓶矿泉水．
<gadget id="calculator">180 + 160</gadget>
<output>340</output>

<result>340</result>