Zhang Xiaotong used her pocket money to buy books and donate them to a hope primary school. Each science book was 9.73 yuan, and each story book was 6.27 yuan. She bought 20 books each. How much did Zhang Xiaotong spend in total?
张晓同用自己的零花钱买书捐给一所希望小学，科技书每本9.73元，故事书每本6.27元，她各买20本．张晓同一共花了多少钱？
<gadget id="calculator">9.73 * 20</gadget>
<output>194.6</output>

<gadget id="calculator">6.27 * 20</gadget>
<output>125.4</output>

<gadget id="calculator">194.6 + 125.4</gadget>
<output>320</output>

<result>320</result>