The grain store shipped 40 bags of rice and 20 bags of flour, each bag weighing 25 kilograms. How many kilograms of rice and flour were shipped in total?
粮店运来40袋大米，20袋面粉，每袋都是25千克，运进大米和面粉一共多少千克？
<gadget id="calculator">40 * 25</gadget>
<output>1_000</output>

<gadget id="calculator">20 * 25</gadget>
<output>500</output>

<gadget id="calculator">1_000 + 500</gadget>
<output>1_500</output>

<result>1_500</result>