The grain store brings in 30 bags of rice and 30 bags of flour, each bag of rice is 50 kilograms, and each bag of flour is 25 kilograms. How many kilograms of rice and flour are brought in altogether?
粮店运进大米、面粉各30袋，每袋大米50千克，每袋面粉25千克，运进的大米和面粉一共多少千克？
<gadget id="calculator">50 + 25</gadget>
<output>75</output>

<gadget id="calculator">75 * 30</gadget>
<output>2_250</output>

<result>2_250</result>