There is a tiger weighing 256kg in the zoo, and a bison weighs exactly three times that of the tiger. How many kg does the bison weigh?
动物园里有一只老虎重256kg，一头野牛的重量刚好是这只老虎的3倍，这头野牛重多少kg？
<gadget id="calculator">256 * 3</gadget>
<output>768</output>

<result>768</result>