примеры 9.(38-30)= 8.7+5.6= 7.(100-91)=
65-(49-19)= 9.9-28:7= 6.(75-65)=
28+45:5= 63:7+54:6= 7+36:4=
9*(38-30)=72 8.7+5.6= 86 7.(100-91)=63
65-(49-19)=35 9.9-28:7= 77 6.(75-65)=60
28+45:5=37 63:7+54:6=18 7+36:4=16