共30题用时5分钟
0.92×0.4=
0.05×7=
0.2×0.26=
0.14×4=
0.3×1.4=
0.02×0.1=
1.2×0.3=
0.2×0.4=
8.2+1.8=
2.3×4=
100-35.22=
2.5×0.4=
0.22×4=
10×0.07=
2.4×5=
3.25×0.5=
3.99×1=
0.9-0.52=
1.05×100=
0.96÷3=
7.5x-3x=
a+3a+7a=
1÷0.5=
0.9×0.8=
0.43+3.57=
2.5×4×12=
10-1.8-7.2=
12.5×8=
8÷10 =
0×3.52=