Baoshang Supermarket shipped 200 bags of potatoes and 200 onions each. Each bag of potatoes weighed 35 kg, and each bag of onions weighed 25 kg. How many kilograms do these potatoes and onions weigh together?
宝商超市运来马铃薯和葱头各200袋，每袋马铃薯重35千克，每袋葱头重25千克．这些马铃薯和葱头共重多少千克？
<gadget id="calculator">35 * 200</gadget>
<output>7_000</output>

<gadget id="calculator">25 * 200</gadget>
<output>5_000</output>

<gadget id="calculator">7_000 + 5_000</gadget>
<output>12_000</output>

<result>12_000</result>