The fruit shop brings in 38 baskets of fruit, each weighing 25 kilograms. Sell 280 kilograms, how many kilograms are left?
水果店运进38筐水果，每筐25千克．卖出280千克，还剩多少千克？
<gadget id="calculator">38 * 25</gadget>
<output>950</output>

<gadget id="calculator">950 - 280</gadget>
<output>670</output>

<result>670</result>