下面各题怎样算简便就怎样算. 18 35 ÷0.6× 2 3 5 17 ÷9+ 1 9 × 12 17 7 25 ×10
收藏:
0
点赞数:
0
评论数:
0
1个回答

(1)

18

35 ÷0.6×

2

3 ,

=

6

7 ×

2

3 ,

=

4

7 ;

(2)

5

17 ÷9+

1

9 ×

12

17

=

5

17 ×

1

9 +

1

9 ×

12

17

=(

5

17 +

12

17 )×

1

9 ,

=1×

1

9 ,

=

1

9 ;

(3)

7

25 ×101-

7

25 ,

=

7

25 ×(101-1),

=

7

25 ×100,

=28;

(4)2-

6

13 ÷

9

26 -

2

3 ,

=2-

4

3 -

2

3 ,

=2-(

4

3 +

2

3 ),

=2-2,

=0;

(5)(

1

6 -

1

3 +

1

4 )÷

1

12 ,

=(

1

6 -

1

3 +

1

4 )×12,

=

1

6 ×12-

1

3 ×12+

1

4 ×12,

=2-4+3,

=1;

(6)[1-(

1

2 +

1

4 )]÷

1

8 ,

=[1-

3

4 ]÷

1

8 ,

=

1

4 ÷

1

8 ,

=2.

点赞数:
0
评论数:
0
关注公众号
一起学习,一起涨知识