Xiaoxing spent 5.2 yuan to buy a notebook, and 4.3 yuan less to buy a pencil than to buy a notebook. How much did he pay for this pencil?
小星买1本笔记本用了5.2元，买1支铅笔比买笔记本少用4.3元．他买这支铅笔用了多少元？
<gadget id="calculator">5.2 - 4.3</gadget>
<output>0.9</output>

<result>0.9</result>