A TV factory needs to produce 904 TV sets. It produces 352 sets in the first week and 448 sets in the second week. How many more sets will be produced?
一个电视机厂要生产904台电视机，第一个星期生产了352台，第二个星期生产了448台，还要生产多少台电视机？
<gadget id="calculator">352 + 448</gadget>
<output>800</output>

<gadget id="calculator">904 - 800</gadget>
<output>104</output>

<result>104</result>