There are 52 boxes of oranges in the fruit shop, each box is 9 kilograms, and 216 kilograms are sold. How many kilograms are left?
水果店有桔子52箱，每箱9千克，卖出216千克，还剩多少千克？
<gadget id="calculator">52 * 9</gadget>
<output>468</output>

<gadget id="calculator">468 - 216</gadget>
<output>252</output>

<result>252</result>