The master and the apprentice make machine parts. The master makes 57 pieces per hour and the apprentice makes 35 pieces per hour. The master works 6 hours and the apprentice works 8 hours. How many parts did they make in total?
师傅和徒弟做机器零件，师傅每小时做57个徒弟每小时做35个，师傅工作6小时，徒弟工作8小时．他们共做了多少个零件？
<gadget id="calculator">57 * 6</gadget>
<output>342</output>

<gadget id="calculator">35 * 8</gadget>
<output>280</output>

<gadget id="calculator">342 + 280</gadget>
<output>622</output>

<result>622</result>