Absolute value calculation

1. Absolute value refers to the distance from the corresponding point of a number on the number line to the origin, using "| |" to express.

2. The absolute value of any rational number is a number greater than or equal to 0, which is the non-negativity of the absolute value.

3. The absolute value of a positive number is itself; The absolute value of a negative number is its opposite; The absolute value of 0 is still 0.

4. There are two numbers with absolute values equal to the same positive number, and these two numbers are opposite or equal to each other.

5. The absolute values of two numbers that are opposite to each other are equal.

6. The two negative numbers are relatively large, and the absolute value is large but small.