There are 80 students in the two classes of the fourth grade of Huayuan Primary School. At the beginning of the new term, the school has replaced all the new single desks and chairs for the fourth grade. Each desk is 68 yuan, and each chair is 32 yuan. How much did the fourth grade of Huayuan Elementary School spend?
花园小学四年级两个班共有学生80人．开学初学校为四年级全部更换了新的单人课桌和椅子，每张课桌68元，每把椅子32元，花园小学四年级一共用了多少钱？
<gadget id="calculator">68 + 32</gadget>
<output>100</output>

<gadget id="calculator">100 * 80</gadget>
<output>8_000</output>

<result>8_000</result>