3.56+65.4= 30-4.06= 0.05×0.6= 8.9-1.5÷0.3=
64×l.25= 4-0.02= 7.3÷0.01=
2+0.05= 83-8.3= 7.2-5.4+1.6=
2.4×5= 80.88+10.12= 0.25×0.8×4=
30÷0.01= 6.6÷2×0.5= 0.12÷0.4÷0.3=
53=
2.4×5÷2.4×5=
33=
12÷0.3=
2.1×0.1=
0.6+4.44=
+ = 1- = + =
- = - = - =
+ = + = - = + =
+ = - = 2+ = - =
对雾霾的了解程度
百分比
A .非常了解
5%
B .比较了解
m
C .基本了解
45%
D .不了解
n