题目内容

3
4
×2=
1
6
+
1
2
=
5
9
÷5=
1
12
×
6
7
=
3
4
÷3=
5
4
×
5
4
=
5
8
÷1=		5-
2
3
=
3
9
×12=
3
5
×
5
12
=		4-
2
3
=
7
12
×3=
2
7
÷14=		8+
3
5
=		0×
13
30
=		39×
3
13
=
8×
1
2
=
5
6
÷
3
4
=		4×
12
7
=		20÷
4
5
=
1-
9
10
=		2.5×16=
5
12
÷
1
6
=
3
2
×
4
5
=
8
15
÷24=		11÷
22
8
=
1
2
÷
3
8
=
4
7
÷
2
3
=
3
4
+
1
7
=		1.5÷0.05=0×
1
9
×9=		1.5÷0.05=
5
8
÷
7
12
=
4
5
×
2
3
×
5
6
=
5
9
×
2
5
=		2.5×0.4=
14×
5
16
=		(
1
2
+
1
3
)×12=
14
33
×
3
7
=		0×
7
9
=
5
8
×
5
8
=
5
21
+
4
7
=
7
9
÷7=		2-
1
4
=
3
5
-
1
8
=
4
21
÷
8
7
=
2
3
-
1
4
=		6.25+1.75=
1
2
÷
7
18
=
9
10
×6=
1
8
+
1
9
=
3
4
÷
4
3
=
1
2
×
2
3
=		12-
5
7
=		1÷
2
5
=
2
9
÷18=
7
28
÷
2
9
=		10×1×
2
5
=		20÷
4
5
=
1
3
×9+9×
2
3
=
42÷
21
23
=
3
8
÷12=
3
4
×2=
3
2
1
6
+
1
2
=
2
3
5
9
÷5=
1
9
1
12
×
6
7
=
1
14
3
4
÷3=
1
4
5
4
×
5
4
=
25
16
5
8
÷1=
5
8
5-
2
3
=4
1
3
3
9
×12=4
3
5
×
5
12
=
1
4
4-
2
3
=3
1
3
7
12
×3=
7
4
2
7
÷14=
1
49
8+
3
5
=8
3
5
0×
13
30
=0		39×
3
13
=9
8×
1
2
=4
5
6
÷
3
4
=
10
9
4×
12
7
=
48
7
20÷
4
5
=25
1-
9
10
=
1
10
2.5×16=40
5
12
÷
1
6
=
5
2
3
2
×
4
5
=
6
5
8
15
÷24=
1
45
11÷
22
8
=4
1
2
÷
3
8
=
4
3
4
7
÷
2
3
=
6
7
，
3
4
+
1
7
=
25
28
1.5÷0.05=300×
1
9
×9=0		1.5÷0.05=30
5
8
÷
7
12
=
15
14
4
5
×
2
3
×
5
6
=
4
9
5
9
×
2
5
=
2
9
2.5×0.4=1
14×
5
16
=
35
8
(
1
2
+
1
3
)×12=10
14
33
×
3
7
=
2
11
0×
7
9
=0
5
8
×
5
8
=
25
64
5
21
+
4
7
=
17
21
7
9
÷7=
1
9
2-
1
4
=1
3
4
3
5
-
1
8
=
19
40
4
21
÷
8
7
=
1
6
2
3
-
1
4
=
5
12
6.25+1.75=8
1
2
÷
7
18
=
9
7
9
10
×6=
27
5
1
8
+
1
9
=
17
72
3
4
÷
4
3
=
9
16
1
2
×
2
3
=
1
3
12-
5
7
=11
2
7
1÷
2
5
=
5
2
2
9
÷18=
1
81
7
28
÷
2
9
=
9
8
10×1×
2
5
=4		20÷
4
5
=25
1
3
×9+9×
2
3
=9
42÷
21
23
=46
3
8
÷12=
1
32
练习册系列答案
相关题目
计算
2
2
9
-（
2
9
+
上
m2
）=
m
上
+
3
7
+
4
上
=
7
9
-
2
3
+
m
3
=		m-
m
6
-
上
6
=
2
5
-
1
3
+
1
2
=______．
直接写出得数
1-1÷7=		13×99=
1
4
+
1
12
=		60×25%=
1
5
-
1
6
=
(
3
5
+
1
3
)×15=		20÷0.1%=4.05-1.9=(
1
2
）2-(
1
3
）2=		24×
1
8
-
1
8
÷
1
8
=
比10吨少
1
4
吨是______．36比______少
1
4
．
直接写得数．
①
1
4
+
3
4
=		②
5
7
-
5
7
=
③1-
3
5
=		④2+
7
8
=
h
6
-
4
9
=
c
9
______．（判断正误）
（1）
7
9
+2
2
9
=______；
（2）12-7
1
8
=______．
计算．
2
8
+
5
8
=
4
5
+
1
5
=
6
9
-
5
9
=

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