Which two signs should be interchanged to make the given equation correct?
10 ÷ 63 × 7 + 90 − 80 = 100

The correct answer is × and ÷.

Step-by-step explanation:

Given equation:

$10÷63\times 7+90-80=100$

We need to interchange the signs $\times$ and $÷$ to make the given equation correct.

After interchanging $\times$ and $÷$, the Left-Hand Side (LHS) of the equation becomes:

$10\times 63÷7+90-80$

Applying the BODMAS rule (Brackets, Orders, Division, Multiplication, Addition, Subtraction):

1. Division: Perform $63÷7$:

$63÷7=9$

Substitute this back into the expression:

$10\times 9+90-80$

2. Multiplication: Perform $10\times 9$:

$10\times 9=90$

Substitute this back into the expression:

$90+90-80$

3. Addition: Perform $90+90$:

$90+90=180$

4. Subtraction: Perform $180-80$:

$180-80=100$

Since LHS = RHS ($100=100$), interchanging the signs × and ÷ makes the equation correct.