Following the same-sign addition rule, the sum of $-1$ and $-4$ is _____.

Arrange the steps in the correct order to add $-1 + (-4)$ using the same-sign addition rule.

What is the result of adding $-1 + (-4)$ using the same-sign addition rule?

What is the sum of $-1$ and $-4$?

Describe the steps to evaluate both expressions using the same-sign rule for integers. What is the final sum for each?

According to the same-sign addition rule, what is the sum of $-1$ and $-4$?

Match each addition expression or rule component with its correct result or description based on the same-sign rule.

Calculate $-1 + (-4)$.

To add $-1$ and $-4$, you add their absolute values to get $5$ and keep the negative sign, resulting in $-5$.

Explain the rule for adding two numbers with the same sign. Show how it works for $1 + 4$ and $-1 + (-4)$.