Uncle Wang sells apples. A box of apples weighs 25 kilograms. He sold 98 boxes. How many kilograms did he sell in total?
王大爷卖苹果，一箱苹果25千克，他卖了98箱，一共卖了多少千克？
<gadget id="calculator">25 * 98</gadget>
<output>2_450</output>

<result>2_450</result>