Grandpa Zhang bought 3 lambs for 135 yuan. He wants to buy 5 more lambs like this. How much money do he need to prepare?
张爷爷买3只小羊用了135元，他还想再买5只这样的小羊，还需要准备多少钱？
<gadget id="calculator">135 / 3</gadget>
<output>45</output>

<gadget id="calculator">45 * 5</gadget>
<output>225</output>

<result>225</result>