Instructional Video
Khan Academy

Khan Academy: Multiplying Positive and Negative Numbers

9th - 10th Standards
A video of basics of multiplication with negative numbers.
Instructional Video
Khan Academy

Khan Academy: Multiplying and Dividing Negative Numbers

3rd - 8th Standards
A video showing the rules of multiplying and dividing negative numbers.
Instructional Video
Study Pug

Study Pug: Understanding the Number Systems

9th - 10th Standards
Numbers can be categorized more specifically into different number systems, for instances, natural numbers, whole numbers, integers, rational numbers, and irrational numbers. In this video, you will learn how to classify numbers into...
Instructional Video
Khan Academy

Khan Academy: Classifying Numbers: Rational and Irrational

7th - 8th Standards
Given a set of numbers, learn how to tell which are rational and which are irrational. [2:17]
Instructional Video
Sophia Learning

Sophia: Multiplying Rationals: Lesson 4

9th - 10th Standards
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 4 of 6 in the series titled "Multiplying Rationals."
Instructional Video
Sophia Learning

Sophia: Multiplying Rationals: Lesson 1

9th - 10th Standards
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 1 of 6 in the series titled "Multiplying Rationals."
Instructional Video
Sophia Learning

Sophia: Whole Numbers

9th - 10th Standards
This lesson goes over whole numbers, or natural numbers that are not fractions/decimals.
Instructional Video
Sophia Learning

Sophia: Whole Numbers

9th - 10th Standards
This lesson goes over whole numbers, or natural numbers that are not fractions/decimals.
Instructional Video
Sophia Learning

Sophia: Representing Rational Numbers Using Variables: Lesson 7

9th - 10th Standards
This lesson demonstrates how to represent rational numbers using variables. It is 7 of 9 in the series titled "Representing Rational Numbers Using Variables."
Instructional Video
Sophia Learning

Sophia: Rational and Irrational Numbers

9th - 10th Standards
In this lesson, students will learn Rational and Irrational Numbers.
Instructional Video
Sector Matemática

Sector Matematica: Orden en Q (Numeros Racionales)

6th - 8th Standards
This video tutorial shows how to compare several rational numbers. [4:08]
Instructional Video
Sophia Learning

Sophia: Whole Numbers

9th - 10th Standards
This lesson goes over whole numbers, or natural numbers that are not fractions/decimals.
Instructional Video
Shmoop University

Shmoop: Introduction to Integers

6th - 9th Standards
Explore integers through this video. [2:31]