Teacher Luo wants to use 1,000 yuan to buy sporting goods for the school. He first bought 5 footballs for 227.5 yuan, and plans to use the rest of the money to buy some basketballs. Each basketball ball is 30.9 yuan. How many more can Mr. Luo buy? blue ball? What other math questions can you ask?
罗老师要用1000元为学校买体育用品，他先花227.5元买了5个足球，并准备用剩下的钱买了一些蓝球，每个蓝球30.9元，罗老师还可以买多少个蓝球？你还能提出什么数学问题？
<gadget id="calculator">227.5 / 5</gadget>
<output>45.5</output>

<result>45.5</result>