123kg=...g
345kg=...g
jjjjjjjjjjjjjjjjjjjjjjjjj
uuuuuuuuuu
ppppppppppppppppppppppppp
nnnnnnnn
hhhhhhhhhhhhh
aaaaaaaaaaaaaaa
ooooooooooooooooo
kkkkkkkkkkkkkkkkkkkkkkkkkkkk
ll
ll
123kg=123000g
345kg=345000g
123 kg = 123 000 g
345 kg = 345 000 g
cách làm :
1 kg = 1000 g => 123 kg = 123 x 1000 = 123 000 g
câu 2 tương tự