Li Dong took 5 yuan to buy stationery and bought 6 similar pencils at 0.25 yuan each. He used the remaining money to buy exercise books. Each exercise book was 0.35 yuan. How many such exercise books can he buy.
李东拿5元钱买文具，买了6枝同样的铅笔，每枝0.25元，他用剩下的钱买练习薄，每本练习薄0.35元，他可以买多少本这样的练习薄．
<gadget id="calculator">6 * 0.25</gadget>
<output>1.5</output>

<gadget id="calculator">5 - 1.5</gadget>
<output>3.5</output>

<gadget id="calculator">3.5 / 0.35</gadget>
<output>10</output>

<result>10</result>