100-[3.25÷(3.25×12.5%)] 99×75%+0.2×7.5-
①15.28﹣3.6﹣3.4
②()×7.2
③
④7.5÷[(6.8﹣4.3)×0.12]
①
②36×()
④
⑤3.24×0.76+3.24×0.24
⑥