Dongfeng Primary School bought 50 sets of desks and chairs in the first semester of this year. Each desk is 80 yuan, and each chair is 25 yuan. How much will it cost in total?
东风小学今年上学期购置50套课桌椅，桌子每张80元，椅子每把25元，一共要用多少元？
<gadget id="calculator">80 + 25</gadget>
<output>105</output>

<gadget id="calculator">105 * 50</gadget>
<output>5_250</output>

<result>5_250</result>