The Red Star Factory produces 1,320 chairs, 600 of which have been produced in the first 10 days, and the rest are required to be completed in 8 days. How many chairs are produced on average per day?
红星厂生产1320把椅子，前10天已经生产了600把，剩下的要求8天完成，平均每天生产多少把？
<gadget id="calculator">1_320 - 600</gadget>
<output>720</output>

<gadget id="calculator">720 / 8</gadget>
<output>90</output>

<result>90</result>