1.47+5.3=
0×99=
9.9÷11=
0.3×3.6=
1÷0.5=
2.8÷1.4×0.2=
-0.375=
5-=
0.32÷10%=
①-(-)
②
③7.95+2.97-5.95
④0.6×+÷
①3060÷15-25×1.4
③
④
①