The time it takes Master Zhang to make a part is reduced from 12 minutes to 8 minutes. In the time it took to make 80 parts, how many more parts can be made now?
张师傅做一个零件所用的时间由原来的12分钟减少到8分钟．原来做80个零件所用的时间，现在可以多做多少个零件？
<gadget id="calculator">80 / 8</gadget>
<output>10</output>

<gadget id="calculator">12 * 10</gadget>
<output>120</output>

<gadget id="calculator">120 - 80</gadget>
<output>40</output>

<result>40</result>