What is 13-9?

Understanding Subtraction: 13 - 9

13 - 9 is a basic arithmetic operation involving subtraction. It's asking, "What is the difference between 13 and 9?" or "If you have 13 and take away 9, how many are left?".

The answer to 13 - 9 is 4.

Here are some related topics:

• Subtraction: This is the mathematical operation of finding the difference between two numbers. Subtraction is the process of taking away a quantity from another.

• Basic Arithmetic: Subtraction is a fundamental part of basic arithmetic. Understanding Basic%20Arithmetic is essential for more advanced mathematical concepts.

• Number Sense: Working with subtraction problems like this builds Number%20Sense, which is an intuitive understanding of numbers and their relationships.