①
②
③
④
⑤
⑥
①+8× ②×-×
③-86× ④36×(+-)
+×69
()×42
101×
①21÷0.5÷0.6
②125×88
③2.5×32×12.5
⑥61×40%+38× +0.4
① ×
②3÷( × )
③1- ×
④ ×( )
⑤ × ×
⑥ ×[ ÷( )]