3
14
×4
=
4
7
×3
=
1
6
×4
=
4
35
×7
=
7
12
×8
=
9
10
×25
=
分析:運用分數(shù)的乘法的計算法則進行計算,計算的結(jié)果要化簡成最簡分數(shù).
解答:解:
3
14
×4=
6
7


4
7
×3=
12
7
=1
5
7


1
6
×4=
2
3


4
35
×7=
4
5


7
12
×8=4
2
3


9
10
×25=22
1
2
點評:本題運用乘法的計算法則進行計算,要先約分再進行計算.
練習(xí)冊系列答案
相關(guān)習(xí)題

科目:小學(xué)數(shù)學(xué) 來源: 題型:

直接寫出得數(shù)
3
4
×
2
3
=
1
8
×
2
5
=
5
6
×18=
4
5
÷8=
4
7
=
3
4
×
7
2
×
4
5
=
5
6
÷
1
2
=
3
10
÷
14
15
=
8
9
÷
4
7
÷
1
3
=
0.25+
3
4
=
1
2
-
1
4
=
5
14
÷
4
21
×
16
25
=
2
7
÷
8
21
=
3
14
×
7
8
=
8-4÷
4
7
=
5
6
-
1
2
=
7
18
÷14=
12×(
2
3
-
1
6
)=
5%×5=
1
5
+
2
7
+
4
5
+
3
7
=
3.75+
5
8
=
63%-27%= (1-20%)÷20%= 0.4÷
2
5
=
4
9
×1.8=
4
9
×25%=

查看答案和解析>>

科目:小學(xué)數(shù)學(xué) 來源: 題型:

直接寫得數(shù)
4
5
-
1
2
=
1
2
+
3
4
=
7
10
×
5
7
=
2-
3
5
=
3
22
×11=
3
14
×
7
8
=
2
13
=
2
3
÷
2
3
=
5
8
÷
1
8
=
4
7
=
4
9
×
3
8
=
7
12
×
3
14
=

查看答案和解析>>

科目:小學(xué)數(shù)學(xué) 來源:不詳 題型:解答題

直接寫得數(shù)
4
5
-
1
2
=
1
2
+
3
4
=
7
10
×
5
7
=
2-
3
5
=
3
22
×11=
3
14
×
7
8
=
2
13
=
2
3
÷
2
3
=
5
8
÷
1
8
=
4
7
=
4
9
×
3
8
=
7
12
×
3
14
=

查看答案和解析>>

科目:小學(xué)數(shù)學(xué) 來源:不詳 題型:解答題

直接寫得數(shù)
4
5
-
1
2
=
1
2
+
3
4
=
7
10
×
5
7
=
2-
3
5
=
3
22
×11=
3
14
×
7
8
=
2
13
=
2
3
÷
2
3
=
5
8
÷
1
8
=
4
7
=
4
9
×
3
8
=
7
12
×
3
14
=

查看答案和解析>>

同步練習(xí)冊答案