Quãng đường AB dài là:
30 x 6 = 180 (km)
Đáp số: 180km
quãng đường dài là :
30x6=180(km)
đáp số : 180km
180km dung 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%