In order to welcome the "June 1st" festival, the school will make 60 small flags in class 1 of five years, and 40% of them have been done so far. How many more flags will be made?
学校为了迎接"六一"节，五年1班要做60面小旗，目前已经做了40%，还要做多少面？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">60 * (3/5)</gadget>
<output>36</output>

<result>36</result>