The school bought 70 sets of desks and chairs, each desk is 55 yuan, and each chair is 45 yuan. How much does the school spend in total?
学校买来70套课桌椅，桌子每张55元，椅子每把45元．问学校一共要支出多少元？
<gadget id="calculator">55 + 45</gadget>
<output>100</output>

<gadget id="calculator">100 * 70</gadget>
<output>7_000</output>

<result>7_000</result>