The school bought 75 sets of desks and stools for the fourth grade, 50 yuan for each desk and 10 yuan for each stool. How much does it cost in total?
学校给四年级买来75套课桌凳，桌子一张50元，凳子一张10元．一共需要多少元？
<gadget id="calculator">50 + 10</gadget>
<output>60</output>

<gadget id="calculator">60 * 75</gadget>
<output>4_500</output>

<result>4_500</result>