There is a migratory bird that can fly 90 kilometers per hour. If it flies continuously for 15 hours, how many kilometers can it fly in total?
有一种候鸟，它每小时能飞行90千米，如果连续飞行15小时，一共能飞行多少千米？
<gadget id="calculator">90 * 15</gadget>
<output>1_350</output>

<result>1_350</result>