问题 解答题
口算:
3
8
×
2
3
=______;
11
12
×
3
22
=______;
1-
2
3
×
9
10
=______;
7
8
÷
1
8
=______;
13÷
26
31
=______
3
4
÷6×
1
3
=______.
答案

3
8
×
2
3
=
1
4
11
12
×
3
22
=
1
8
1-
2
3
×
9
10
=
3
5
7
8
÷
1
8
=7;
13÷
26
31
=
31
2
3
4
÷6×
1
3
=
1
24
故答案为:
1
4
1
8
3
5
,7,
31
2
1
24

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