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Greater than and less than basics
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.
Sal introduces the greater than symbol ">" and the less than symbol "<".
Practice comparing numbers (within 100) using the symbols , and =.
Learn how to graph an inequality on a number line to indicate which values make it true.
We're writing inequalities by using information from the word problems. Woohoo!
Practice writing inequalities to describe real-world situations.
This time we're creating a variable to represent a number, and then writing an inequality. We're building on our knowledge.
Practice writing inequalities with variables to describe real-world situations.
Learn how to plot a simple inequality on a number line. The example used in this video is x < 4.
Create number line graphs of inequalities.