①(42+69)÷3
②510÷5÷3
③89+11×7
④104×6÷3
⑤726-160÷4
⑥360÷(2×3)
①( ﹣ )×24
②0.36×99+0.36
③20.8﹣(9.6+0.125÷12.5%)
④( ﹣ ÷2)×
⑤2.5×16×12.5
⑥0.5÷[ ﹣( ﹣ )]