①7.8-3.5+2.2-6.5
②600÷[(160-76)÷7]
③70×4+90×4
④840÷35
⑤382×101-382
⑥12-1.56-0.44
①( ﹣ )×24
②0.36×99+0.36
③20.8﹣(9.6+0.125÷12.5%)
④( ﹣ ÷2)×
⑤2.5×16×12.5
⑥0.5÷[ ﹣( ﹣ )]