To add integers having the same sign keep same sign and add the absolute value of each numbers. to add integers with different signs . keep the sign of the number with the largest absolute value from the largest . subtract an integer by adding its opposite.

Adding an Integer using Number Line
To add integers using a number line, follow these steps:

Step 1: Understand the concept
- Integers are positive and negative whole numbers.
- Adding a positive integer means moving to the right on the number line.
- Adding a negative integer means moving to the left on the number line.

Step 2: Represent the integers on a number line
- Draw a number line with zero in the middle.
- Mark the starting point of the integer you want to add.
- Move to the right or left based on whether the integer is positive or negative.

Step 3: Add the integers
- To add a positive integer, move to the right on the number line by the value of the integer.
- To add a negative integer, move to the left on the number line by the absolute value of the integer.
- The sum of the integers is the point where you land on the number line.

Step 4: Understand the result
- If the sum lands to the right of zero, it is a positive integer.
- If the sum lands to the left of zero, it is a negative integer.
By following these steps and using a number line, you can easily add integers and visualize the result.