Guangming Primary School newly bought 45 sets of single-person desks and chairs, each desk is 128 yuan, and each chair is 52 yuan. How much more did it cost to buy the table than the chairs?
光明小学新买来45套单人课桌椅，每张课桌128元，每把椅子52元．买桌子比买椅子总共多用了多少元？
<gadget id="calculator">128 - 52</gadget>
<output>76</output>

<gadget id="calculator">76 * 45</gadget>
<output>3_420</output>

<result>3_420</result>