The store shipped 600 bags of rice and 600 bags of flour each, each bag of rice weighed 30 kilograms, and each bag of flour weighed 25 kilograms. How many kilograms more did the rice deliver than the flour?
商店运来大米和面粉各600袋，每袋大米重30千克，每袋面粉重25千克，运来的大米比面粉多多少千克？
<gadget id="calculator">30 - 25</gadget>
<output>5</output>

<gadget id="calculator">5 * 600</gadget>
<output>3_000</output>

<result>3_000</result>