During the winter vacation, Xiao Ming plans to read 600,000 words. Xiao Gang said: "Xiao Ming plans to read 200,000 words less than twice as much as mine." Please do the math, how many 10,000 words Xiao Gang plans to read?
寒假期间，小明计划读书60万字，小刚说："小明计划读的比我的2倍少20万字．"请你算一算，小刚准备读多少万字？
<gadget id="calculator">60 + 20</gadget>
<output>80</output>

<gadget id="calculator">80 / 2</gadget>
<output>40</output>

<result>40</result>