Whole Numbers, Integers, and Real Numbers are different categories of numbers. Throughout the Resource Center, we will make references to whole numbers and integers in regard to rounding. The numbers you will use throughout your life are part of the real numbers. Learn about these three categories in the video below.

### Real World Application

To work in computer programming and with databases, it is important to understand the different classifications of numbers. Some programming languages use data types such as integers and real numbers as well as strings, null values, and other data types. Here is a piece of coding from the coding language Python that uses integers.

Whole numbers, Integers, Real numbers

## Additional Resources

- Khan Academy: Whole Number & Integers

### Practice Problems

**2. Which of these numbers are whole numbers? Indicate all that apply.**

(

Video Solution

a. \(-2\)

b. \(-1.57\)

c. \(0\)

d. \(1\)

e. \(5\)

f. \(9.9999\)

**2. Which of these numbers are integers? (Indicate all that apply.)**

(

Video Solution

a. \(-2\)

b. \(-1.57\)

c. \(0\)

d. \(1\)

e. \(5\)

f. \(9.9999\)

**3. Which of the following numbers are real numbers? (Indicate all that apply.)**

(

Video Solution

a. \(-2\)

b. \(-1.57\)

c. \(0\)

d. \(1\)

e. \(5\)

f. \(9.9999\)

## Need More Help?

- Study other Math Lessons in the Resource Center.
- Visit the Online Tutoring Resources in the Resource Center.
- Contact your Instructor.
- If you still need help, Schedule a Tutor.