A toy factory produces 660 toys. It has been done for 8 days, an average of 45 pieces per day, and the rest will be completed in 6 days. How many pieces should be done on average every day? (Solution of column equation)
一个玩具厂要制作660件玩具．已经做了8天，平均每天做45件，其余的要6天完成，以后平均每天应做多少件？(列方程解)
<gadget id="calculator">45 * 8</gadget>
<output>360</output>

<gadget id="calculator">660 - 360</gadget>
<output>300</output>

<gadget id="calculator">300 / 6</gadget>
<output>50</output>

<result>50</result>