The supermarket brought in 425 kilograms of rice, sold 300 kilograms, and shipped another 420 kilograms. How many kilograms of rice does the supermarket have now?
超市运进大米425千克，卖了300千克，又运来420千克，现在超市有大米多少千克？
<gadget id="calculator">425 - 300</gadget>
<output>125</output>

<gadget id="calculator">125 + 420</gadget>
<output>545</output>

<result>545</result>