# Rational and irrational numbers

3 videos

2 skills

More numbers than you probably imagine can be represented as the ratio of two integers. We call these rational numbers. But there are also really amazing numbers that can't. As you can guess, we call them irrational numbers.

### Intro to rational & irrational numbers

VIDEO
5:55 minutes

Learn what rational and irrational numbers are and how to tell them apart.

### Classifying numbers: rational & irrational

VIDEO
2:18 minutes

Given a bunch of numbers, learn how to tell which are rational and which are irrational.

### Classify numbers: rational & irrational

PRACTICE PROBLEMS

Practice identifying whether numbers are rational or irrational.

### Approximating irrational number exercise example

VIDEO
3:36 minutes

### Comparing irrational numbers with a calculator

PRACTICE PROBLEMS

Practice using a calculator to find the approximate decimal values of irrational numbers.