7+8=15
13+14=27
19+20=39
22+23=45
56+57=113
118+119=237
20- nu exista doua numere consecutive care inmultite sa dea 20 (nu stiu)
3x4=12
6x7=42
10x11=110
7x8=56
14x15=210
13+14+15=42
11+12+13=36
58+59+60=177
34+35+36=105
35+36+37+38=146
16+17+18+19= 70
53+54+55+56=218
dupa ce aflice-i cu 20 de la puntul b te rog sa-mi spui si mei succes
