2.4×(+) ×3.2× ×+×
×99- 47× (-)×(+)
×()×11 ×99+
16.58-(5.35+4.58) 26×
①
②
③
()×21
①21÷0.5÷0.6
②125×88
③2.5×32×12.5
④
⑤
⑥61×40%+38× +0.4
① ×
②3÷( × )
③1- ×
④ ×( )
⑤ × ×
⑥ ×[ ÷( )]