Question

What is the distance between -57 and zero on a number line

Answer 1

The number -57, is 57 away from 0

From 0 to any number (or from any number to 0) is always the number

For example the substance between 20 and 0 is always 20
or
the distance between -57 and 0 is always 57

Answer 2

The distance between 0 and -57 is -56