The school purchased 2,300 sets of comic strips at 30 yuan each. How much did it cost to buy these comic strips?
学校购进2300套连环画，每套30元．买这些连环画共用了多少钱？
<gadget id="calculator">30 * 2_300</gadget>
<output>69_000</output>

<result>69_000</result>