8÷20=0.4, 7.03-0.03=7,
4
9 ÷
5
6 =
8
15 ,
1-5÷8=
3
8
1
4 ×4÷
1
4 ×4=16, 2.4×5=12,
0.4 2=0.16, 0.1×0.01=0.001,
1
2 +
1
3 +
1
6 =1,
3.2万+1.8万=5万.
故答案为:0.4,7,
8
15 ,
3
8 ,16,12,0.16,0.001,1,5万.
8÷20=0.4, 7.03-0.03=7,
4
9 ÷
5
6 =
8
15 ,
1-5÷8=
3
8
1
4 ×4÷
1
4 ×4=16, 2.4×5=12,
0.4 2=0.16, 0.1×0.01=0.001,
1
2 +
1
3 +
1
6 =1,
3.2万+1.8万=5万.
故答案为:0.4,7,
8
15 ,
3
8 ,16,12,0.16,0.001,1,5万.