The supermarket shipped 20 bags of flour and 20 bags of rice, each bag of flour was 25 kg, and each bag of rice was 75 kg. How many kilograms of flour and rice are shipped in total?
超市运来面粉和大米各20袋，面粉每袋25千克，大米每袋75千克．运来的面粉和大米一共多少千克？
<gadget id="calculator">25 * 20</gadget>
<output>500</output>

<gadget id="calculator">75 * 20</gadget>
<output>1_500</output>

<gadget id="calculator">500 + 1_500</gadget>
<output>2_000</output>

<result>2_000</result>