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

<result>2_450</result>