Xiao Ming needs to read a storybook in 12 days. He reads 18 pages a day for the first 5 days and 26 pages a day for 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天每天看18页，后7天每天看26页，这本书共多少页？
<gadget id="calculator">18 * 5</gadget>
<output>90</output>

<gadget id="calculator">26 * 7</gadget>
<output>182</output>

<gadget id="calculator">90 + 182</gadget>
<output>272</output>

<result>272</result>