The toy factory made a total of 520 dolls from January 21 to January 28. How many dolls are made on average every day?
玩具厂从1月21日到1月28日一共做了520个布娃娃，平均每天做多少个布娃娃？
<gadget id="calculator">28 - 21</gadget>
<output>7</output>

<gadget id="calculator">7 + 1</gadget>
<output>8</output>

<gadget id="calculator">520 / 8</gadget>
<output>65</output>

<result>65</result>