bai1: viet so thap phan thich hop vao cho cham
a, 4m 25cm=......m b, 9dm 8cm 5mm=......dm
12m 8dm=......m 2m 6dm 3cm=........m
26m 8cm=.....m 4dm 4mm=........dm
c, 248dm=.....m d, 3561m=...... km
36 dm=......m 542m=....... km
5dm=........m 9m=........km