Find the two signs to be interchanged for making the following equation correct.
6 + 3 × 8 − 12 ÷ 4 = 4

To find the two signs that need to be interchanged to make the equation correct, we begin with the given equation:

$6+3\times 8-12÷4=4$

Let's test the interchange of the division symbol ($÷$) and the subtraction symbol ($-$).

After interchanging $÷$ and $-$, the equation becomes:

$6+3\times 8÷12-4=4$

Now, we simplify the Left-Hand Side (LHS) of the equation using the BODMAS rule (Division and Multiplication first, followed by Addition and Subtraction):

Step 1: Simplify the multiplication and division terms from left to right:
$3\times 8÷12=24÷12=2$

Substitute this back into the expression:
$6+2-4$

Step 2: Perform the addition:
$6+2=8$

Step 3: Perform the subtraction:
$8-4=4$

Since the LHS equals the Right-Hand Side (RHS), the equation is now balanced and correct.

Therefore, the two signs that must be interchanged are $÷$ and $-$.