1. I nr=1000
II nr=2872
III nr=3872
1000+2872+3872=7744
2. Ana are in cos 15 mere. Maria are cu 5 mai multe, iar Ion cu 4 mai putin. Cite mere au ei impreuna?
3. 5000-3000=2000(b)
5000-2000=3000(c)
3000-2000=1000(a)
4. c=1762-1126=636
b=636+216=852
b+c=636+852=1488
a=1762-1488=274