a) (1+3)/2=2
b) (4+6)/2=5
c) (5+11)/2=8
d) (23+87)/2=55
e) (256+652)/2=454
f) (1481+9999)/2=5740
"la puterea" pe pc se noteaza cu ^ , ca sa stii ce am scris mai jos
g) (2^56+2^59)/2=[2(2^55+2^58)]/2=2^55+2^58
h)(12+48)/2=30
i) (43+87)/2=65
j) (245+133)/2=189
k) (2+2^7)/2=[2(1+2^6)]/2=1+2^6