Current location - Training Enrollment Network - Mathematics courses - Fill in the appropriate units in the horizontal line. (1) The Yangtze River is about 6300 _ _ _ _. (2) The housing area of Xiaohua family is112 _ _ _. (3) Mathematics textbooks.
Fill in the appropriate units in the horizontal line. (1) The Yangtze River is about 6300 _ _ _ _. (2) The housing area of Xiaohua family is112 _ _ _. (3) Mathematics textbooks.
(1) The Yangtze River is about 6300 kilometers long.

(2) The housing area of Xiaohuajia is112m2.

(3) The area of the cover of the math textbook is about 3 square decimeters.

The area of a stamp is about 6 square centimeters.

(5) The land area of China is about 9.6 million square kilometers.

The bilingual school covers an area of about 20,000 square meters, or 2 hectares.

So the answer is: kilometers, square meters, square decimeters, square centimeters, square kilometers, square meters, hectares.

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