问题 解答题
直接写得数.
11
4
×
2
11
=
1
4
+
1
5
=
6
7
÷2=
1
5
×5÷
1
5
×5=
0.42×0.01%=0.561×100=9.3×7.9≈(  )×0.5=1.
答案

11
4
×
2
11
=
1
2
1
4
+
1
5
=
9
20
6
7
÷2=
3
7
1
5
×5÷
1
5
×5=25,
0.42×0.01%=0.000042,0.561×100=56.1,9.3×7.9≈72,( 2 )×0.5=1.
故答案为:
1
2
9
20
3
7
,25,0.000042,56.1,72,2.

单项选择题
问答题