There are 135 ginkgo trees in Xiaoming's house, and last year, each tree harvested an average of 64 kg of ginkgo. This year, it is estimated that each tree will harvest 20 kilograms more than last year. How many kilograms of ginkgo are expected to be harvested this year?
小明家有135棵银杏树，去年平均每棵收获银杏64千克．今年预计每棵比去年多收获20千克，今年预计能收获银杏多少千克？
<gadget id="calculator">64 + 20</gadget>
<output>84</output>

<gadget id="calculator">84 * 135</gadget>
<output>11_340</output>

<result>11_340</result>