This year, my country completed 9.12 million hectares of afforestation, an increase of 1.35 million hectares over last year. How many ten thousand hectares of afforestation area has been completed in two years?
今年我国完成造林面积912万公顷，比去年增加了135万公顷．两年共完成造林面积多少万公顷？
<gadget id="calculator">912 - 135</gadget>
<output>777</output>

<gadget id="calculator">777 + 912</gadget>
<output>1_689</output>

<result>1_689</result>