2.7×0.3÷2.7×0.3=
24.56÷0.8=
12.1÷0.01=
0.5×0.5=
0.7÷3.5=
3.3-0.33=
10×3.8-3.8=
0.16÷0.4×2.5=
0.45×18÷0.15=
0.4×(0.8-0.65)=
1.8+2.2=