There are 120 students in the sixth grade of Yuhua Primary School, 70 of whom have reached the national physical exercise standard. If the "compliance rate" of the sixth grade reaches 85%, how many students should still meet the standard?
育华小学六年级有学生120人，其中70人已达到国家体育锻炼标准，要使六年级"达标率"达到85%，还应有多少人达标？
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">120 * (17/20)</gadget>
<output>102</output>

<gadget id="calculator">102 - 70</gadget>
<output>32</output>

<result>32</result>