Jiecijing is prepared with stock solution and water at a ratio of 1:10. The existing 80ml stock solution, how many ml do you need to add water?
洁瓷净是用原液和水按1：10配制而成的．现有80毫升原液，需要加水多少毫升？
<gadget id="calculator">80 * 10</gadget>
<output>800</output>

<result>800</result>