Kindergarten children drink fruit juice, the average per person drinks 50ml, how many milliliters are left after 1 liter of fruit juice is distributed to 16 children
幼儿园小朋友喝果汁，平均每人喝50毫升，1升装的果汁分给16个小朋友后还剩下多少毫升
<gadget id="calculator">1 * 1_000</gadget>
<output>1_000</output>

<gadget id="calculator">16 * 50</gadget>
<output>800</output>

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

<result>200</result>