cate sticle de 1 litru se pot umple din 10 sticle de 300ml

Răspuns :

10 x 300 ml = 3000ml = 3l 

3 : 1 = 3 sticle de 1 litru 
1l=1000ml
300x10=3000ml
3000:1000=3 sticle de 1 l