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Video Tutorial: Rational Numbers: Multiplying Rational Numbers

Video Tutorial: Rational Numbers: Multiplying Rational Numbers

What Are Rational Numbers?

A Brief Review of Integers

Integers include the whole numbers, zero, and

positive numbers 1, 2, 3, etc., but also includes a different class of numbers, negative numbers.

 

The definition of integers.

You can use a number line to represent the integers.

 

A number line showing integers.

Notice that every integer and its opposite is the same distance from 0 on the number line. Also, the arrow heads on the number line mean that the integers extend to infinity.

Rational Numbers

All rational numbers can be written this way.

The definition of a rational number.

Rational numbers can be written in different ways.

Examples of rational numbers.

Integers are examples of rational numbers.

Examples of rational numbers.

If a number cannot be written as the ratio of two integers, then it is an irrational number.

Examples of irrational numbers.

Rational numbers can be graphed on a number line.

Examples of graphs of rational numbers.

This is part of a collection of video tutorials on the topic of Rational Numbers.

To see the complete collection of these videos, click on this link.

Note: The download is an MP4 file.

Related Resources

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Math Video Library

To see the complete collection of these videos, click on this link.

Common Core Standards CCSS.MATH.CONTENT.6.RP.A.1, CCSS.MATH.CONTENT.6.NS.C.5, CCSS.MATH.CONTENT.7.NS.A.2.A, CCSS.MATH.CONTENT.8.NS.A.1, CCSS.MATH.CONTENT.6.NS.C.6, CCSS.Math.CONTENT.7.NS.A.1, CCSS.MATH.CONTENT.7.NS.A.1.C, CCSS.MATH.CONTENT.7.NS.A.1.D, CCSS.MATH.CONTENT.7.NS.A.2, CCSS.MATH.CONTENT.7.NS.A.2.C
Duration 5.40 minutes
Grade Range 6 - 8
Curriculum Nodes Algebra
    • Rational Expressions and Functions
        • Rational Expressions
Copyright Year 2017
Keywords rational numbers, rational numbers video tutorials, video tutorials, rational products, video tutorial