The master and apprentice work together to process a batch of parts in 8 hours, the master processes 87 parts per hour, and the apprentice processes 38 parts per hour. How many parts are there in this batch?
师徒两人共同用8小时加工一批零件，师傅每小时加工87个，徒弟每小时加工38个．这批零件有多少个？
<gadget id="calculator">87 + 38</gadget>
<output>125</output>

<gadget id="calculator">125 * 8</gadget>
<output>1_000</output>

<result>1_000</result>