计算下面各题:76-(32+4)□,4×6+5□,73-28+16□,82-16-35□
9-4=9-5=4+5=
10-4=10-6=4+6=
5+2=7-5=7-2=
4+1=5-1=5-4=
2+6=8-6=3+3=6-3=