bai1: viet cac so do duoi day theo thu tu tu be den lon
8,62m 82,6dm 8,597m 860cm 8m6cm
bai2: viet so thich hop vao cho cham
2, 305 kg=..........g 4,2 kg=.........g 4,08kg=.............g
0,01kg=........g 0,009kg=.......g 0,052kg=............g
bai 3: viet so thap phan thich hop vao cho cham
1kg 725g=........kg 3kg 45g=.........kg 12kg5g=........kg
6528g=...........kg 789g=..............kg 64g=...........kg
7 tan125kg=..........tan 2 tan 64kg=..........tan 177kg=..........tan
1 tan3ta=......tan 4 ta=....... tan 4yen=..........tan