Uncle Nong sold 9 boxes of large mangoes in the morning, with an average of 52 per box; in the afternoon, he sold 7 boxes of small mangoes, with an average of 102 per box. How many mangoes did Uncle Nong sell in the morning and afternoon?
农叔叔上午卖出9箱大芒果，平均每箱52个；下午卖出7箱小芒果，平均每箱102个．农叔叔上午和下午共卖出多少个芒果？
<gadget id="calculator">52 * 9</gadget>
<output>468</output>

<gadget id="calculator">102 * 7</gadget>
<output>714</output>

<gadget id="calculator">468 + 714</gadget>
<output>1_182</output>

<result>1_182</result>