A story book has 124 pages. Xiao Ming read 47 pages on the first day and 53 pages on the second day. How many pages are left?
一本故事书有124页．小明第一天读了47页，第二天读了53页，还剩多少页没读？
<gadget id="calculator">47 + 53</gadget>
<output>100</output>

<gadget id="calculator">124 - 100</gadget>
<output>24</output>

<result>24</result>