Answer: -20, -19, -18, |-18|, |-22|, |30|
Explanation:
A number with vertical lines on either side means the absolute value of that expression, i.e. how far it is from 0. An absolute value can be 0 or positive but never negative.
|-18| = 18
|-22| = 22
|30| = 30
Positive numbers are bigger, greater, or higher than zero. They are on the opposite side of zero from the negative numbers. Negative numbers get smaller the farther they are from zero. You can think of positive and negative numbers as being opposites because they are on opposite sides of the number line.
I hope this helps :)