Uncle Liu brought 600 yuan to buy fertilizer, 72 yuan per bag of fertilizer, and uncle Liu had 96 yuan left after buying the fertilizer. How many bags of fertilizer did Uncle Liu buy?
刘叔叔带600元钱买化肥，每袋化肥72元，买完化肥刘叔叔还剩96元钱，刘叔叔买了多少袋化肥．
<gadget id="calculator">600 - 96</gadget>
<output>504</output>

<gadget id="calculator">504 / 72</gadget>
<output>7</output>

<result>7</result>