A piece of land in Uncle Zhang’s family harvested 2,800 kilograms of rice last year, and this year’s production has increased by 30% compared to last year. How many kilograms of rice will this land harvest this year?
张伯伯家的一块地，去年收稻谷2800千克，今年比去年增产了三成，这块地今年收稻谷多少千克．
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 + (3/10)</gadget>
<output>13/10 = around 1.3</output>

<gadget id="calculator">2_800 * (13/10)</gadget>
<output>3_640</output>

<result>3_640</result>