Current location - Training Enrollment Network - Mathematics courses - (1) The cover width of the math textbook is about 2 _ _ _ _ _. (2) The average height of sophomores is about128 _ _ _. (3) the mathematics teaching department you use.
(1) The cover width of the math textbook is about 2 _ _ _ _ _. (2) The average height of sophomores is about128 _ _ _. (3) the mathematics teaching department you use.
(1) The cover width of the math textbook is about 2 decimeters;
(2) The average height of senior two students is about128 cm;
(3) The thickness of the math textbook you use is about 6 mm;
(4) The distance of marathon is 42km 195m.
So, the answer is: (1) decimeter; (2)cm； (3)mm； (4) kilometers, meters.