How can you use negative numbers to repel resent real-world problems?

-4000 minus - 999999 other numbers

Understand that positive and negative numbers are used together to describe quantities having opposite directions or values (e. g., temperature above/below zero, elevation above/below sea level, credits/debits, positive/negative electric charge); use positive and negative numbers to represent quantities in real-world contexts, explaining the meaning of 0 in each situation.