Bottle A contains 600 grams of fruit juice, and bottle B contains 800 grams of fruit juice. How many grams should be poured from bottle B to bottle A? The weight of the two bottles of fruit juice is the same.
甲瓶有果汁600克，乙瓶有果汁800克，应从乙瓶向甲瓶倒多少克，两瓶果汁就一样重．
<gadget id="calculator">800 - 600</gadget>
<output>200</output>

<gadget id="calculator">200 / 2</gadget>
<output>100</output>

<result>100</result>