Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Number Systems
Find a quick, concise explanation of Real Numbers. Other number systems are also defined such as: Natural, Integer, Rational, Irrational and Complex Numbers.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Real Numbers
Get independent practice working with real numbers. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Oswego City School District
Regents Exam Prep Center: Who's Who? Properties of Real Numbers
A great opportunity for your students to practice their knowledge of the number properties with the card game. A quick way to help students learn.
Oswego City School District
Regents Exam Prep Center: Properties of Real Numbers
This chart gives the definition of each Real Number Property with an example excellent for reference or review. Site by Oswego City School District.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Signed Numbers
This resource explains positive and negative numbers. There are example problems solved, problems for the student to attempt, and answers to the student problems.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Adding and Subtracting Signed Numbers
Here is a site that clearly and thoroughly explains how to add and subtract signed numbers. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out to students who...
Lawrence Hall of Science
The Math Page: Skill in Algebra: Multiplying and Dividing Signed Numbers
Here is a site that clearly and thoroughly explains multiplying and dividing signed numbers. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out to students who...
Other
Mrao: Imaginary Numbers Are Not Real
This site presents a tutorial introduction to the ideas of geometric algebra. Gives an outline of geometric algebra and discusses the geometric product, imaginary numbers, and more.
Math Planet
Math Planet: Integers and Rational Numbers
Gain an understanding of integers and rational numbers by viewing an example and a video lesson.
Math Planet
Math Planet: Algebra 1: Calculating With Real Numbers
Provides explanations and a video lesson that illustrates how to calculate with real numbers.
Math Planet
Math Planet: Algebra 1: Integers and Rational Numbers
Provides an example and a video lesson that illustrates integers and rational numbers.
Illustrative Mathematics
Illustrative Mathematics: N q.a.1: Selling Fuel Oil at a Loss
This task is a modeling problem which ties into financial decisions faced routinely by companies. Students will try to keep a balance between maintaining their oil inventory and raising short-term capital for investment or re-investment...
Illustrative Mathematics
Illustrative Mathematics: N rn.a.1: Evaluating a Special Exponential Expression
The purpose of this task is to study the rules of exponents in the context of trying to make sense of a challenging mathematical expression. Teachers will critically analyze each student's argument. Aligns with N-RN.A.1.
Math Open Reference
Math Open Reference: Number
Resource defines numbers into two main categories, counting numbers and scalars. It also gives examples of number notation.
CK-12 Foundation
Ck 12: Algebra: Basics of Real Numbers Study Guide
This comprehensive study guide highlights the main terms and formulas needed to understand the basics of real numbers. Examples are included.
PBS
Pbs: Building a Number Line
Recall the definitions of four different sets of numbers. This interactive illustration focuses on displaying counting numbers, integers, rational numbers, and real numbers on a number line, providing the opportunity to visualize number...
Other
Chili Math: How to Classify Real Numbers
Explains how to classify real numbers and provides numerous examples.
Help Algebra
Help algebra.com: Addition & Subtraction of Real Numbers
Using a number line, the technique for adding and subtracting real numbers is demonstrated. Notation and calculator use is also touched on at the end of the lesson.
Help Algebra
Help algebra.com: Multiplication and Division
Multiplication and division of real numbers is demonstrated in this lesson using charts and examples.
Math Words
Math words.com: Complex Numbers
At MathWords.com, a definition is given for what complex numbers are, along with some examples.
Other
The Prime Glossary: Rational Numbers
This site gives a definition of what a rational number is. Gives examples and formulas. Very helpful.
Sophia Learning
Sophia: Multiplying Rationals: Lesson 2
This lesson demonstrates how to multiply rational numbers using algebraic notation. It is 2 of 6 in the series titled "Multiplying Rationals."
ClassFlow
Class Flow: Always, Sometimes, Never
[Free Registration/Login Required] In this lesson, students will be given ten statements. Using the Activotes, they are to choose whether each statement is always true, sometimes true, or never true.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Real Number System
Find a quick, concise explanation of real numbers. Examples are given and clearly explained in a diagram that shows the relationship real numbers has to other numbers.