The grain store shipped 80 bags of rice and flour each. It is known that each bag of rice weighs 50 kilograms and each bag of flour weighs 25 kilograms. How many kilograms of rice and flour were shipped this time? (answer in two ways)
粮店运来大米和面粉各80袋，已知每袋大米重50千克，每袋面粉重25千克，这次共运来大米和面粉多少千克？(用两种方法解答)
<gadget id="calculator">50 * 80</gadget>
<output>4_000</output>

<gadget id="calculator">25 * 80</gadget>
<output>2_000</output>

<gadget id="calculator">4_000 + 2_000</gadget>
<output>6_000</output>

<result>6_000</result>