①15.28﹣3.6﹣3.4
②()×7.2
③
④7.5÷[(6.8﹣4.3)×0.12]
①12.5×(8+0.8)
②+×
③+÷
④26﹣7.28﹣12.72
⑤5.8×4.1+5.9×5.8
⑥÷(+1.4×)
① []
②4.6+7.68﹣1+2.32
③1.25×2.5×0.4×8
④9.5×20%+