Mr. Wang had to correct 98 compositions, 12 were corrected on the first day, and 8 more were corrected on the second day than on the first day. How many articles have not been corrected?
王老师要批改98篇作文，第一天批改了12篇，第二天批改的比第一天多8篇．还有多少篇没有批改？
<gadget id="calculator">12 + 8</gadget>
<output>20</output>

<gadget id="calculator">98 - 12 - 20</gadget>
<output>66</output>

<result>66</result>