It takes Xiao Ming 12 days to read a storybook, 120 pages in the first 5 days, and 30 pages a day in the next 7 days. How many pages does this book have?
一本故事书小明要12天看完，前5天看了120页，后7天每天看了30页．这本书共有多少页？
<gadget id="calculator">30 * 7</gadget>
<output>210</output>

<gadget id="calculator">120 + 210</gadget>
<output>330</output>

<result>330</result>