Master Zhuang produced 252 parts in 4 hours in the morning, and worked for another 3 hours in the afternoon at this speed. How many parts did Mr. Zhuang produce in total on this day?
庄师傅上午4小时生产了252个零件，照这样的速度下午又工作3小时．庄师傅这一天共生产零件多少件？
<gadget id="calculator">252 / 4</gadget>
<output>63</output>

<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">63 * 7</gadget>
<output>441</output>

<result>441</result>