Master Li makes 45 parts per hour, and Master Zhu makes 51 parts per hour. The two worked for 8 hours each, how many more parts did Master Zhu make than Master Li? (do it in two different ways)
李师傅每小时做45个零件，朱师傅每小时做51个零件．两人各做8小时，朱师傅比李师傅多做多少个零件？(用两种不同的方法做)
<gadget id="calculator">51 * 8</gadget>
<output>408</output>

<gadget id="calculator">45 * 8</gadget>
<output>360</output>

<gadget id="calculator">408 - 360</gadget>
<output>48</output>

<result>48</result>