The school bought 15 sets of tables and chairs. Each table is 68 yuan, and each chair is 34 yuan. How much did the school spend on these desks and chairs?
学校买来15套桌椅．桌子每张68元，椅子每把34元．学校买这些桌椅共用去多少钱？
<gadget id="calculator">68 + 34</gadget>
<output>102</output>

<gadget id="calculator">102 * 15</gadget>
<output>1_530</output>

<result>1_530</result>