stationery factory plans to produce 7,000 pencil cases. It has been produced for 3 days, 1,500 are produced every day, and the rest will be completed in 2 days. How many are produced on average per day?
一个文具厂计划生产7000个笔盒，已经生产了3天，每天生产1500个，余下的要2天完成．平均每天要生产多少个？
<gadget id="calculator">1_500 * 3</gadget>
<output>4_500</output>

<gadget id="calculator">7_000 - 4_500</gadget>
<output>2_500</output>

<gadget id="calculator">2_500 / 2</gadget>
<output>1_250</output>

<result>1_250</result>