The school held an art exhibition. The first and second grades exhibited 48 pictures, and the third grade exhibited 2 times the total number of first and second grades. How many pieces are exhibited in three grades?
学校举行美术作品展览．一、二年级展出48幅，三年级展出的图画是一、二年级总数的2倍．三个年级共展出多少幅？
<gadget id="calculator">48 * 2</gadget>
<output>96</output>

<result>96</result>