①21÷0.5÷0.6
②125×88
③2.5×32×12.5
④
⑤
⑥61×40%+38× +0.4
0×3.96=
1÷2.4=
0.125×0.8=
4.62÷1%=
7.06+3.2=
5-=
+=
÷3=
720÷60=
0.22+0.42=
9×3.14= +÷= 36×= 728﹣299=
72÷0.4= 75×10%= 1÷×= 12.56÷6.28=