Final answer:
The absolute value of a number is the distance between that number and zero on a number line. The opposite of a number is the number with the sign flipped.
Step-by-step explanation:
The absolute value of a number is the distance between that number and zero on a number line. It is always positive or zero. For example, the absolute value of 3 is 3.
The opposite of a number is the number with the sign flipped. If the original number is positive, its opposite is negative, and vice versa. For example, the opposite of 3 is -3.
So, the difference between the absolute value of a number and the opposite of a number lies in the sign. The absolute value is always positive or zero, while the opposite is negative if the original number is positive and vice versa.