Element subtraction of same matrix

I have a square matrix, suppose 2x2 matrix.

For example A = [2,5; 3,8]; Its order is 2x2.

I want an answer which is double in order of A.

I need a code for subtraction A-A in such a ways that answer will show the arrangement below.

Answer = [2-2, 2-5, 2-3, 2-8; 5-2, 5-5, 5-3, 5-8; 3-2, 3-5, 3-3, 3-8; 8-2, 8-5, 8-3, 8-8];

The order of "Answer" is double of A matrix.

Answer 1

[KSSV]

A = [2,5; 3,8];   
B = [2-2, 2-5, 2-3, 2-8; 5-2,   5-5, 5-3, 5-8;   3-2, 3-5, 3-3, 3-8;    8-2, 8-5, 8-3, 8-8]; 

A1 = A' ; 
C = (A1(:)'-A1(:))' ;
isequal(B,C)

Answer 2

[Hernia Baby]

A = [2,5; 3,8];
B =  [2-2, 2-5, 2-3, 2-8; 5-2,   5-5, 5-3, 5-8;   3-2, 3-5, 3-3, 3-8;    8-2, 8-5, 8-3, 8-8]; 

A = A';
Answer =  repmat(A(:),1,4) - repmat(A(:)',4,1);

Answer == B