9,75 dm = 97 , 5 cm ( ..Đ.. )
21 , 34 m = 2134 cm ( .Đ...)
18 , 09 m = 189 cm (...S.)
Đúng ghi Đ sai ghi S
9,75 dm = 97 , 5 cm ( ....Đ. )
21 , 34 m = 2134 cm ( .Đ....)18 , 09 m = 189 cm (.S....)
9,75 dm = 97 , 5 cm (Dung)
21 , 34 m = 2134 cm ( Dung)
18 , 09 m = 189 cm (Sai)