# Greater than and less than basics

5 videos

4 skills

Equality is usually a good thing, but the world is not a perfect place. No matter how hard we try, we can't help but compare one thing to another and realize how unequal they may be.
This tutorial gives you the tools to do these comparisons in the mathematical world (which we call inequalities). You'll become familiar with the "greater than" and "less than symbols" and learn to use them.

### Greater than and less than symbols

VIDEO
5:04 minutes

Learn the greater than symbol ">" and the less than symbol "<".

### Comparing two-digit numbers

PRACTICE PROBLEMS

Practice comparing numbers using the symbols <, >, and =. All numbers in these problems are within 100.

### Inequalities: plotting on a number line

VIDEO
6:14 minutes

We've been taking a lot of equalities. What about when the relationships between numbers need to be expressed as inequalities? For example, less/greater than and/or equal to? How can we represent that idea on a number line?

### Inequality word problems

VIDEO
3:28 minutes

We're writing inequalities by using information from the word problems. Woohoo!

### Writing numerical inequalities

PRACTICE PROBLEMS

Practice writing inequalities to describe real-world situations.

### Inequality word problem: one variable

VIDEO
2:27 minutes

This time we're creating a variable to represent a number, and then writing an inequality. We're building on our knowledge.

### Writing inequalities to describe real-world situations

PRACTICE PROBLEMS

Practice writing inequalities with variables to describe real-world situations.

### A simple inequality: plotting on a number line

VIDEO
1:34 minutes

We're plotting a simple inequality on a number line in this example.

### Inequalities on a number line

PRACTICE PROBLEMS

Practice writing equations of inequalities graphed on number lines. Identify number line graphs of inequalities.