Yuanyuan bought 3 thermos bottles for 160 yuan, and the salesperson found 4 yuan. How much is each thermos bottle?
圆圆用160元买了3个热水瓶，营业员找了4元，每个热水瓶多少元？
<gadget id="calculator">160 - 4</gadget>
<output>156</output>

<gadget id="calculator">156 / 3</gadget>
<output>52</output>

<result>52</result>