计算：①8×（-1）2-（-4）+（-3）；②-413-512+713；③-14_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题解答题

计算：
①8×（-1）²-（-4）+（-3）；
②-4

1

3

-5

1

2

+7

1

3

；
③-1⁴×（-2

1

6

）+（-5）×2

1

6

+4×

13

6

；
④（-2）³÷|-3²+1|-（-5

1

2

）×

4

11

．

答案

①8×（-1）²-（-4）+（-3）

=8×1+4-3

=8+4-3

=12-3

=9；

②-4

1

3

-5

1

2

+7

1

3

=-4

1

3

+7

1

3

-5

1

2

=3-5

1

2

=-2

1

2

；

③-1⁴×（-2

1

6

）+（-5）×2

1

6

+4×

13

6

=-1×（-2

1

6

）+（-5）×2

1

6

+4×2

1

6

=1×2

1

6

+（-5）×2

1

6

+4×2

1

6

=2

1

6

×（1-5+4）

=0；

④（-2）³÷|-3²+1|-（-5

1

2

）×

4

11

=-8÷|-9+1|+

11

2

×

4

11

=-8÷8+2

=-1+2

=1．

阅读理解

阅读理解，判断正(√)误(×)。

Mother Rabbit has four children（孩子）.One is Bruce. He is fishing. One is William.He is writing

on the paper.Another in a skirt is Jane. She is reading a book under the tree. The last one is Jone.He is

singing. They have a good time（玩得愉快）.

( ) 1. Mother Rabbit has five children.

( ) 2. Bruce is fishing.

( ) 3. Jane is reading a book under the tree.

( ) 4. William is singing.

( ) 5. They have a good time.

选择题

联合国的总部设在[ ]

A．日内瓦

B．纽约

C．洛桑

D．伦敦