75+360÷20-5 72-4×6÷3 75+360÷(20-5) (72-4)×6÷3
=75+18-5 =72-24÷3 =75+360÷15 =68×6÷3
=93-5 =72-8 =75+24 =408÷3
=88 =64 =99 =136
(75+360)÷(20-5) (72-4)×(6÷3)
=435÷15 =68×2
=29 =136
75+360÷20-5 72-4×6÷3 75+360÷(20-5) (72-4)×6÷3
=75+18-5 =72-24÷3 =75+360÷15 =68×6÷3
=93-5 =72-8 =75+24 =408÷3
=88 =64 =99 =136
(75+360)÷(20-5) (72-4)×(6÷3)
=435÷15 =68×2
=29 =136