(7*4+42)-2*6÷4 (37+4*7-17)÷6 7×5+(5*9-25)÷4 2*3*9-48÷8*3 9*4+6*7-(2*7+54)
(28+42)-12:4=70-3=67 (37+28-17):6=48:6= 8 35+5=40 45-18=36 36+42-(14+54)=78-68=10
(7*4+42)-2*6÷4=67 (37+4*7-17)÷6=8 7*5+(5*9-25)÷4=40 2*3*9-48÷8*3=36 9*4+6*7-(2*7+54)=10