You can always use money as integers. Think of 0 as your starting budget in your bank account. A positive integer would be added money and a negative would be subtracted money. You deposit $25 into it (+25). Then you buy something that is $35 and deduct 35 (-35) from your account. This will leave you with -$10.
Give a real-world example of how integers are used. Explain what 0,negative integers, and positive integers mean in the situation. Describe how you might compare two such integers.