①3.12÷15+12.5×28
②
③
④
①78×101
②36.2﹣5.7﹣4.3
③36×(++)
④3.5÷×0.3
⑤÷[(﹣)×]
⑥12.5×2.5×32
①216÷(18×6)
② × + ÷
③( - )× ×36
④125%×2.5×3.2
⑤4.67-(0.67+2.98)
⑥ ÷[2÷( - )]