题目内容

如果a是一个大于零的自然数，下列各式中得数最大的是（　　）
A．a×
7
8
B．a÷
7
8
C．
7
8
÷a
a÷
7
8
＞a×
7
8
≥
7
8
÷a．
故选B．
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相关题目
直接写出得数：
3
7
×3=
8
9
÷4=
3
4
+4=		（
2
3
）3=
6
7
×
5
6
=
3
10
÷
5
6
=
13
7
÷26=
3
5
-
1
2
=
口算：
2005-1998=		1.6×0.05=5.7÷0.19=0.125×0.7=
5
8
÷
2
3
=
2
3
÷6=
21
85
÷
35
34
=		40×
16
39
=
1
2
÷
1
3
=
3
4
×12=
17
38
×
19
51
=
7
25
×201-
7
25
=
直接写得数
1
3
×0=
1
4
×
2
5
=
5
6
×12=
7
12
×
3
14
=
1
7
×14=
8
9
×
3
8
=
3
10
×
10
3
=		9×
7
18
=
2
3
×
9
10
=
1
2
÷
2
3
=
1
5
+
4
5
=
3
4
-
1
4
=
2
5
×2=
3
7
×
1
3
=		12÷
3
4
=
5
9
×
3
5
=
3
4
×4=
22
13
×
13
11
=
1
5
+
1
4
=
2
3
×
1
4
=
11
26
×
13
11
=
2
3
÷
3
4
=		0÷
13
11
=
1
2
×
1
4
=		0×10=
7
10
×
5
2
=
2
3
+
1
6
=
7
8
-
3
8
=		0÷
3
4
=
7
10
÷
2
5
=
1
3
×4=
3×
2
7
+1=
1
3
+
4
9
=
9
10
-
3
5
=		1÷（
2
9
-
1
9
）=		4÷
1
4
×4=
计算．
4
15
×
2
3
=
10
21
×
3
5
=
7
12
×
3
14
=		6×
2
15
=
11
20
×
5
8
=
14
15
×
7
12
=
9
22
×
13
21
=		27×
5
36
=
下面（　　）中两个数的积在
1
5
和
7
10
之间．
A．
1
5
×
1
2
B．
7
10
×
6
7
C．
3
8
×5
计算下面各题．
3
13
×
26
37
18
21
×
7
9
23
24
×
8
69
．
9个■的
1
3
是______个■．

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