4×( )=8×3 ( )÷9=14÷7 67-( )-15=32
(26+16)÷6= 35÷(13-8)= 54÷(18÷2)=
63÷9×6= (35+13)÷6= 50-(5+24)=
53-36÷4= 100+900= 1800-900=
2500-1000= 45÷6= 27÷8= 160-80=