Question

直接寫出下面各題的得數(shù)．
11×

9

11

1

3

×

3

4

0×

5

7

5

7

×

14

15

1.6×

1

4

1

9

×1.8

4

9

×

1

2

5

8

×1.6

5

6

÷

1

2

1

3

×4.2．

Answer 1

考點(diǎn)：分?jǐn)?shù)乘法,分?jǐn)?shù)除法

專題：計(jì)算題

分析：根據(jù)分?jǐn)?shù)乘法的計(jì)算方法：分子相乘的積做分子，分母相乘的積做分母，能約分的先約分，直接計(jì)算出結(jié)果即可．

解答： 解：11×

9

11

=9

1

3

×

3

4

=

1

4

0×

5

7

=0

5

7

×

14

15

=

2

3

1.6×

1

4

=0.4

1

9

×1.8=0.2

4

9

×

1

2

=

2

9

5

8

×1.6=1

5

6

÷

1

2

=

5

3

1

3

×4.2=1.4．

點(diǎn)評(píng)：本題考查了簡單的分?jǐn)?shù)乘法計(jì)算，計(jì)算時(shí)要細(xì)心，注意把結(jié)果化成最簡分?jǐn)?shù)．