Find each sum or difference. See Example 1. -6 + (-13)

Key Concepts

Addition of Integers

The addition of integers involves combining two whole numbers, which can be positive or negative. When adding a negative integer, you effectively subtract its absolute value from the other number. For example, adding -6 and -13 means you are moving 6 units left from zero and then 13 more units left, resulting in a total of -19.

Negative Numbers

Negative numbers are values less than zero, represented with a minus sign. They are used to indicate a deficit or a loss in various contexts, such as temperature below freezing or financial debt. Understanding how to work with negative numbers is crucial for performing operations like addition and subtraction accurately.

Number Line

A number line is a visual representation of numbers in a straight line, where each point corresponds to a number. It helps in understanding the relative positions of numbers, including positive and negative values. When performing operations like addition or subtraction, the number line can be a useful tool to visualize the movement from one number to another.