Solve the Equation: Finding the Missing Operator in 7?7=1

To solve this problem, let's evaluate which arithmetic operation or sign makes the equation $7 \text{?} 7 = 1$ true:

• Addition: $7 + 7 = 14$, which is not 1.
• Subtraction: $7 - 7 = 0$, which is not 1.
• Multiplication: $7 \times 7 = 49$, which is not 1.
• Division: $7 \div 7 = 1$, which satisfies the equation.

Therefore, the correct sign is the division sign. The equation becomes:

$7 \div 7 = 1$

Thus, the correct sign is :.