There are 270 story books in the school library, and the number of science books is 40 times the number of story books. How many story books and science books are there altogether?
学校图书馆有270本故事书，科技书的本数是故事书本数的40倍，故事书和科技书一共有多少本？
<gadget id="calculator">270 * 40</gadget>
<output>10_800</output>

<gadget id="calculator">10_800 + 270</gadget>
<output>11_070</output>

<result>11_070</result>