Răspuns:
2+2{2+2[2+2(2+2:2)]}=22
(2+2:2)=2+1=3
2+2[2+2(2+2*1)]=22
(2+2*1)=4
2+2(2+2*4)=22
(2+2*4)=10
2+2*10=22