An "Encyclopedia" costs 34.30 yuan, and a "Children's Stories" costs 15.70 yuan. There are 40 students in Class 3 and 1, and 32 of them want to buy these two books. How much do they have to pay in total?
一本《百科全书》要34.30元，一本《儿童故事》要15.70元，三1班共有40名同学，其中有32名同学都要买这两本书．他们一共要付多少钱？
<gadget id="calculator">32 * 34.3</gadget>
<output>1_097.6</output>

<gadget id="calculator">32 * 15.7</gadget>
<output>502.4</output>

<gadget id="calculator">1_097.6 + 502.4</gadget>
<output>1_600</output>

<result>1_600</result>