Xiaohua's family has 220 apple trees, and last year each tree harvested an average of 64 kilograms of apples. This year, each tree is expected to earn 20 kilograms more than last year. How many kilograms of apples are expected to be earned this year?
小华家有220棵苹果树，去年平均每棵收获苹果64千克．今年预计每棵比去年多收入20千克，今年预计收入苹果多少千克？
<gadget id="calculator">64 + 20</gadget>
<output>84</output>

<gadget id="calculator">84 * 220</gadget>
<output>18_480</output>

<result>18_480</result>