Примеры : 3010-5614: 7+9042. (40179-15395: 5)*4. (90-42: 3*2): 2. 15*(54: 3-84: 7)

3010-5614:7+9042=11250
(40179-15395:5)*4=148400
(90-42:3*2):2=31
15*(54:3-84:7)=90

1) 3010-5614:7+9042 = 3010-802+9042 = 11250 ; 2) (40179-15395:5)*4 = (40179-3079)*4 = 37100*4 = 148400 ; 3) (90-42:3*2):2 = (90-28):2 = 62:2 = 31 ; 4) 15*(54:3-84:7) = 15*(18-12) = 15*6 = 90