school is newly opened and needs to purchase 1,800 sets of desks and chairs, including 75 yuan for a desk and 25 yuan for a chair. How much is the total cost of purchasing these desks and chairs?
某校新开办，要采购1800套课桌椅，其中课桌一张75元，椅子一把25元，采购这批课桌椅共需要多少万元？
<gadget id="calculator">100 * 1_800</gadget>
<output>180_000</output>

<gadget id="calculator">180_000 / 10_000</gadget>
<output>18</output>

<result>18</result>