共30题用时5分钟
27+456+73=
0.3×0.3=
7.2+2.8=
12÷0.3=
0.9÷0.01=
2.87÷0.7=
0.96÷0.3=
13÷4=
16÷1.6=
1.5×0.4=
8-2.5=
5.6×1.01=
7÷0.25=
0.36+0.64=
4.2÷0.1=
2.5×0.7×0.8=
64.32÷16=
72.8÷0.8=
8.4÷4.2=
2.4×2.5=
13.8+9.9=
19.6÷2=
0.75×4=
1.23×3=
3.5+3.5×3=
8.8÷2.2=
2.56-0.37=
12×2.5=
3.2÷1.6=
0.05×0.8=