Negative numbers play an important role in many everyday situations, especially in areas like money, weather, and science.

1. Money Matters

• Debts and Loans: Negative numbers are often used to show how much someone owes. For example, if a person has a debt of $500, we can write it as$-500$. When figuring out net worth, we use this formula:
  Net Worth = Assets + Liabilities
  Here, "Liabilities" are the negative amounts.

• Profit and Loss: In business, a loss can also be shown with a negative number. For example, if a company loses $200,000, it shows this as$-200,000$. This affects their financial reports.

2. Temperature Readings

• Celsius Scale: In weather reports, temperatures can go below zero degrees Celsius. For instance, a temperature of $-5^\circ C$ means it is freezing, which is important for weather predictions.

3. Scientific Measurements

• Altitude: Negative numbers are used to show how far below sea level something is. The Dead Sea, for example, is about $-430 \text{m}$, and this information is important for studies about the earth.

Conclusion

Knowing how to use negative numbers is very important for solving real-life problems in fields like money and science. These examples show how negative numbers help us understand and analyze different kinds of data better.