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(1)518×14×90%4÷85-40%(58+56)(2)85x-120%=5.23x+90%×4=9x-20%x=8.

题目详情
(1)
5
18
×
1
4
×90%
8
5
-40%
5
8
+
5
6

(2)
8
5
x-120%=5.2
3x+90%×4=9
x-20%x=8.
5
18
×
1
4
×90%
8
5
-40%
5
8
+
5
6

(2)
8
5
x-120%=5.2
3x+90%×4=9
x-20%x=8.
5
18
551818
1
4
1144
8
5
-40%
5
8
+
5
6

(2)
8
5
x-120%=5.2
3x+90%×4=9
x-20%x=8.
8
5
8855
5
8
+
5
6

(2)
8
5
x-120%=5.2
3x+90%×4=9
x-20%x=8.
5
8
5588
5
6
5566
8
5
x-120%=5.2
3x+90%×4=9
x-20%x=8.
8
5
8855

▼优质解答
答案和解析
(1)
5
18
×
1
4
×90%,
=
5
18
×
1
4
×
9
10

=
1
16


8
5
-40%,
=4×
5
8
-
2
5

=
5
2
-
2
5

=
21
10


5
8
+
5
6
=
35
24


(2)
8
5
x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
5
18
555181818×
1
4
111444×90%,
=
5
18
×
1
4
×
9
10

=
1
16


8
5
-40%,
=4×
5
8
-
2
5

=
5
2
-
2
5

=
21
10


5
8
+
5
6
=
35
24


(2)
8
5
x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
5
18
555181818×
1
4
111444×
9
10

=
1
16


8
5
-40%,
=4×
5
8
-
2
5

=
5
2
-
2
5

=
21
10


5
8
+
5
6
=
35
24


(2)
8
5
x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
9
10
999101010,
=
1
16


8
5
-40%,
=4×
5
8
-
2
5

=
5
2
-
2
5

=
21
10


5
8
+
5
6
=
35
24


(2)
8
5
x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
1
16
111161616;

8
5
-40%,
=4×
5
8
-
2
5

=
5
2
-
2
5

=
21
10


5
8
+
5
6
=
35
24


(2)
8
5
x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
8
5
888555-40%,
=4×
5
8
-
2
5

=
5
2
-
2
5

=
21
10


5
8
+
5
6
=
35
24


(2)
8
5
x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
5
8
555888-
2
5

=
5
2
-
2
5

=
21
10


5
8
+
5
6
=
35
24


(2)
8
5
x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
2
5
222555,
=
5
2
-
2
5

=
21
10


5
8
+
5
6
=
35
24


(2)
8
5
x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
5
2
555222-
2
5

=
21
10


5
8
+
5
6
=
35
24


(2)
8
5
x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
2
5
222555,
=
21
10


5
8
+
5
6
=
35
24


(2)
8
5
x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
21
10
212121101010;

5
8
+
5
6
=
35
24


(2)
8
5
x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
5
8
555888+
5
6
555666=
35
24


(2)
8
5
x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
35
24
353535242424;

(2)
8
5
x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
8
5
888555x-120%=5.2,
     
8
5
x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
8
5
888555x-1.2=5.2,
 
8
5
x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
8
5
888555x-1.2+1.2=5.2+1.2,
         
8
5
x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
8
5
888555x=6.4,
      
8
5
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
8
5
888555x×
5
8
=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
5
8
555888=6.4×
5
8

            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.
5
8
555888,
            x=4;

 3x+90%×4=9,
    3x+3.6=9,
3x+3.6-3.6=9-3.6,
        3x=5.4,
     3x÷3=5.4÷3,
         x=1.8;

   x-20%x=8,
     0.8x=8,
0.8x÷0.8=8÷0.8,
        x=10.