The store shipped in 245 boxes of apples, each with 12 kilograms. Some were sold on the first day, and there were 150 kilograms left. How many kilograms were sold on the first day?
商店运进245箱苹果，每箱12千克，第一天卖了一些，还剩150千克，第一天卖了多少千克？
<gadget id="calculator">245 * 12</gadget>
<output>2_940</output>

<gadget id="calculator">2_940 - 150</gadget>
<output>2_790</output>

<result>2_790</result>