题目内容

快速计算．
2
9
×3=
3
4
×12=
5
18
×6=		3×
5
6
=		4×
3
10
=
20×
3
10
=		4×
7
12
=		3×
4
15
=		100×
1
25
=		50×
7
10
=
7
11
×33=		24×
8
15
=		35×
3
28
=		10×
3
5
=		12×
1
6
=
7×
1
14
=
2
5
×200=		0×
4
11
=
11
48
×36=
21
25
×15=
4×
2
11
=		26×
2
13
=		4
1
2
×1=
3
4
×
3
4
=
3
4
×
1
2
=
3
8
×
5
6
=
2
9
×3=
2
3
3
4
×12=9
5
18
×6=
5
3
3×
5
6
=
5
2
4×
3
10
=
6
5
20×
3
10
=6		4×
7
12
=
7
3
3×
4
15
=
4
5
100×
1
25
=4		50×
7
10
=35
7
11
×33=21		24×
8
15
=
64
5
35×
3
28
=
15
4
10×
3
5
=6		12×
1
6
=2
7×
1
14
=
1
2
2
5
×200=80		0×
4
11
=0
11
48
×36=
33
4
21
25
×15=
63
5
4×
2
11
=
8
11
26×
2
13
=4		4
1
2
×1=4
1
2
3
4
×
3
4
=
9
16
3
4
×
1
2
=
3
8
3
8
×
5
6
=
5
16
练习册系列答案
相关题目
一个数是0.2的倒数，增加它的
1
2
后是______．
甲×
5
8
=乙÷
6
7
，甲数比乙数小．______．
把
2
9
+
2
9
+
2
9
+
2
9
改写成乘法算式是______．
1
4
×
4
3
表示______，36个
5
6
是______，0.35的倒数是______．
直接写出得数．
9
16
×4=
3
4
×8=
7
9
×18=
3
5
×20=
8
13
×
13
15
=
5
11
×
11
13
=
3
4
×
5
12
=
3
10
×
2
9
=
5
7
×
14
25
=		60×
7
12
=
直接写得数．
2
5
×6=		30×
5
6
=
2
13
÷
2
5
=		20÷
4
5
=
1
2
+
1
5
=
7
9
×
5
8
×0=
1
7
×
2
3
=		1÷
2
3
×
3
10
=
5
8
-50%=		18
6
7
÷6=
直接写结果：
2
7
×3=		1÷
1
3
=		1-
1
2
-
1
3
=
5
8
×
2
3
=		3-4×
3
4
=
1
6
×12=
2
9
÷
3
5
=
1
2
+
7
12
=		1-
1
6
-
1
3
=
3
4
-
1
2
=
直接写出得数．
1
4
×60=		12÷
3
5
=		3.14×42=（
2
3
）2=
7
8
×
4
7
=
1
5
+
1
3
=
1
9
÷
1
3
=
5
4
÷
5
8
=

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