Find the Operation Sign: Solving 110 ? 110 = 0

To solve this problem, we'll follow these steps:

• Step 1: Identify the given numbers and equation structure.
• Step 2: Analyze each potential operation to see which one results in zero.

Now, let's work through each step:

Step 1: The given equation is $110 \text{?} 110 = 0$. We need to find the correct operation between the two 110s to make the equation true.

Step 2: We consider the following operations:

• Addition: $110 + 110 = 220$, which is not equal to 0.
• Multiplication: $110 \times 110 = 12100$, which is not equal to 0.
• Division: $110 \div 110 = 1$, which is not equal to 0.
• Subtraction: $110 - 110 = 0$, which is equal to 0.

Upon analyzing these operations, subtraction is the only operation that satisfies the equation $110 - 110 = 0$.

Therefore, the correct sign to use is $-$.