Mom bought a liter of milk and drank 200ml on the first day, and the rest was divided equally among the 4 people on the second day. How many ml of milk did each person get on the second day?
妈妈买了一升的牛奶，第一天喝了200毫升，剩下的第二天4人平均分，第二天每人分得多少毫升牛奶？
<gadget id="calculator">1 * 1_000</gadget>
<output>1_000</output>

<gadget id="calculator">1_000 - 200</gadget>
<output>800</output>

<gadget id="calculator">800 / 4</gadget>
<output>200</output>

<result>200</result>