Răspuns :
(22x44:2+76x3)x10:10+(21x90x0)=712
22x44=968
968:2=484
76x3=228
484+228=712
21x90=1890
1890x0=0
712x10=7120
7120:10=712
712+0=712
22x44=968
968:2=484
76x3=228
484+228=712
21x90=1890
1890x0=0
712x10=7120
7120:10=712
712+0=712