Dongshan Township planted 160,000 trees last year, 20% less than this year. How many thousands of trees will be planted this year?
东山乡去年植树16万棵，比今年少植20%．今年植树多少万棵？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">16 / (4/5)</gadget>
<output>20</output>

<result>20</result>