Prerequisites[edit | edit source]
Addition and subtraction of natural numbers
What are integers?[edit | edit source]
You may notice how you can't subtract larger numbers from smaller numbers in the natural numbers. However, what happens if you remove that restriction?
If you remove this restriction, you get the integers:
3-2, 4-5, 6-7, and 3-4 all yield integers.
Different looks[edit | edit source]