Viết số thích hợp vào chỗ chấm
a 7m2 5dm2 =...............................m2
8m2 75cm2 = ...............................m2
514dm2 =.....................m2
13456cm2 = ...................m2
8,5 km2 = ..................ha
0,5km2=................ha
85a=...........................km2
405a=...........................km2
3,05m2=.......................cm2
0,75m2=..............cm2
34,7dag=.......................hg
705g=........................kg