① ② ③ ④ ⑤ ⑥
8+2.2=
1.5×6=
①67%×4.3+4.3×33%
②(+0.375)×48
③0.875×25+75×87.5%
×-25%× (1-×)÷ 85×+15×75%
15.8+4.2÷2.5 1.25×25×3.2
2005× 17×23×
①101×
②0.16+4÷(-)
③(-+)×12
④3.5×+5.5×80%+0.8
①6.4×2.5×1.25
②8.5×98%
③÷4+×
④×
①
②
③
④
⑤
⑥
① []
②4.6+7.68﹣1+2.32
③1.25×2.5×0.4×8
④9.5×20%+