Classes 1 and 2 donated books to Hope Primary School. Class 1 donated a total of 145 books. Class 2 donated 80 books less than twice that of Class 1. How many books did the two classes donate to Hope Primary School?
一班和二班同学为希望小学捐赠图书，一班共捐图书145册，二班捐的图书比一班的2倍少80册，两个班共为希望小学捐赠图书多少册？
<gadget id="calculator">145 * 2</gadget>
<output>290</output>

<gadget id="calculator">290 - 80</gadget>
<output>210</output>

<gadget id="calculator">210 + 145</gadget>
<output>355</output>

<result>355</result>