①12.5×8.8
②
③34.25-1.72-2.28
32×0.125× 2.4×(+×) *0.68×99+( )
①63.7﹣5.8﹣4.2
②×+÷11
③(++)×24
④5.96×[1÷(2.1﹣2.09)]