Grandma Li bought 5 little rabbits for 130 yuan. She wants to buy 15 more. How much more yuan do she need to prepare?
李奶奶买5只小兔花了130元，她想再买15只，还需要准备多少元？
<gadget id="calculator">130 / 5</gadget>
<output>26</output>

<gadget id="calculator">26 * 15</gadget>
<output>390</output>

<result>390</result>