The school purchased 85 sets of tables and chairs. 67 yuan per table, 23 yuan per chair. How much did the school purchase these desks and chairs?
学校购进85套桌椅．每张桌子67元，每把椅子23元．学校购进这些桌椅一共多少元？
<gadget id="calculator">67 + 23</gadget>
<output>90</output>

<gadget id="calculator">90 * 85</gadget>
<output>7_650</output>

<result>7_650</result>