题目内容

口算显身手！
3
8
×
6
5
=
1
3
×
4
5
=
7
15
×3=
3
5
×
1
3
=
7
9
×0=
1
3
×
1
8
=
2
7
×
1
3
=
2
3
×
2
7
=
7
15
×
2
14
=
3
8
×
6
5
=
9
20
1
3
×
4
5
=
4
15
7
15
×3=
7
5
3
5
×
1
3
=
1
5
7
9
×0=0
1
3
×
1
8
=
1
24
2
7
×
1
3
=
2
21
2
3
×
2
7
=
4
21
7
15
×
2
14
=
1
15
练习册系列答案
相关题目
5
17
×______=0.2×______=______×11=______-
7
8
．
直接写出得数：
4
7
×
7
8
=		6.4×
7
8
=		4-
6
13
-
7
13
=		1÷
1
4
×
1
4
=
2.5×37×4=8.1×
5
9
=		0.6÷
3
4
=
7
8
÷0.875-1=
直接写得数．
5
12
×
4
5
=
3
8
÷
3
2
=		(
1
3
+
1
4
)×24=		1.8-1.8÷
9
2
=
4
5
-0.45=		1.25×
7
9
×0.8=
3
5
×5÷
3
5
×5=		（
1
6
-
1
10
）×30=
口算．
1
6
×3=		0÷
7
9
=		0.5+
1
3
=
5
21
×
14
26
=
8+
1
7
=
9
14
÷
3
10
=		2-
8
17
-
9
17
=		16.5+4.7=
1
7
÷3÷
1
7
=		5.6×
1
8
=
直接写出得数．
3
4
×16=		12÷
3
5
=		0.3×
5
6
=
3
5
÷
9
10
=		1÷
7
8
=		0×
1
12
+
1
8
=
3
10
×
5
6
=
2
3
÷
2
3
=		0.75÷
1
3
=		1-
3
4
=		1÷0.01=10-0.01=
1
3
的
1
9
是______，
1
9
是
1
3
的______，______的
5
12
是10．
比
4
5
kg多
1
2
是______kg，3kg比______kg多
1
2
．
直接写出得数．
3
4
×16=		10÷
5
7
=		12÷
3
5
=
1
4
×
1
8
=
6
25
×
6
5
=
3
4
÷3=
21
5
×
1
5
=
5
12
×
15
4
=

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