lesson

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Imagine two freezers: one is set to β2βF and the other is set to β10βF.
The freezer at β10βF is much colder, which means β10 is actually a smaller value than β2.
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On any standard number line, the golden rule never changes: values further to the right are always greater, and values further to the left are always less.
So how do we write this mathematically using comparison symbols?
Comparing Two Negative Integers
We use the inequality symbols < (less than) and > (greater than), where the open mouth always points toward the greater number.
Let's compare β6 and β1. Because β1 is to the right of β6 on the number line, we write β6<β1 (or β1>β6).
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It is easy to get tricked because 6 is bigger than 1, but with negative numbers, being further below zero makes a number smaller.
Think of it like debt: owing \6meansyouhavelessmoneythanifyouonlyowe$1$.
What happens when we need to put a whole messy list of positive and negative numbers in order?