176+98=
2-=
0.24÷10%=
0.7÷2.5÷4=
-=
÷3=
4×25%=
(+)×6=
2.4×=
1.6÷8%=
÷×=
0.25×32×0.125=
3.14×(0.4÷2)2=
2.72+3-2.72+3=
1-0.09=