①600-43×12
②26×(35+28)
③32×3×15
①8(x﹣6.2)=41.6
②15.8﹣ +14.2﹣
③0.125×76+12.5%×24
④ x+ x=30
⑤
⑥
① []
②4.6+7.68﹣1+2.32
③1.25×2.5×0.4×8
④9.5×20%+