bai 1: Viet so thich hop vao cho cham :
a) 6kg 780g = ......... g
6kg 78g = ............g
6kg 7g = ..............g
b) 3500kg = ........tan .........kg
305kg = ..........ta ..........kg
35kg = ............yen .......kg
Bai 2 :
a) 6,7m2 = ......dm2
0,5ha = .............m2
16,5dm2 = ,............cm2
27ha= ...........................km2
( m2 la met vuong )
dm2 = de - xi - met vuong