Xinming Primary School bought 65 sets of single-person desks and chairs, each desk is 135 yuan, and each chair is 55 yuan. How much more did you spend on desks than chairs?
新名小学新买来65套单人课桌椅，每张课桌135元，每把椅子55元，买课桌比椅子多用了多少元？
<gadget id="calculator">135 - 55</gadget>
<output>80</output>

<gadget id="calculator">65 * 80</gadget>
<output>5_200</output>

<result>5_200</result>