It's raining, and Little Bear is going to buy umbrellas. Each umbrella is 5 yuan. He plans to buy 108 umbrellas. How much will it cost?
下雨了，小熊去买伞，每把伞5元，它准备买108把，共要花多少钱？
<gadget id="calculator">5 * 108</gadget>
<output>540</output>

<result>540</result>