The store shipped 60 bags of rice flour and 60 bags of rice each, each bag of rice weighed 30 kilograms, and each bag of flour weighed 25 kilograms. How many kilograms more rice was shipped than flour? (calculated in two ways)
商店运来米粉和大米各60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？(用两种方法计算)
<gadget id="calculator">30 * 60</gadget>
<output>1_800</output>

<gadget id="calculator">25 * 60</gadget>
<output>1_500</output>

<gadget id="calculator">1_800 - 1_500</gadget>
<output>300</output>

<result>300</result>