Răspuns :
a) 27 =1+26=2+25=3+22=...=11+16=....
b) 19 =1+18=2+17=3+16=...=10+9= ...
c) 36 = 10+26=15+21=17+18=...= 20+16=...
b) 19 =1+18=2+17=3+16=...=10+9= ...
c) 36 = 10+26=15+21=17+18=...= 20+16=...