Xiaohua's family received 720 kilograms of Chinese cabbage and sold them at a price of 2 yuan per kilogram. How much should they receive?
小华家收了720千克大白菜，以每千克2元的价售出，应收多少钱？
<gadget id="calculator">720 * 2</gadget>
<output>1_440</output>

<result>1_440</result>