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.
OER Commons
Oer Commons: Reviewing the Properties of Multiplication
Seventh graders use properties of multiplication to prove that the product of any two negative numbers is positive and the product of a positive number and a negative number is negative.
Calculator Soup
Calculator Soup: Math Equation Solver
Solve math problems using order of operations like PEMDAS, BEDMAS and BODMAS. This calculator solves math equations that add, subtract, multiply and divide positive and negative numbers and exponential numbers. You can also include...
ClassFlow
Class Flow: Pre Algebra Problem Solving
[Free Registration/Login Required] This flipchart contains manipulatives for creating addition and subtraction problems using positive and negative numbers. There is an example problem which teachers can use to help design their own...
ClassFlow
Class Flow: Fraction Decimal Equivalent
[Free Registration/Login Required] The teacher will use this lesson plan to identify and represent on a number line decimals, fractions, mixed numbers, positive and negative integers.
Calculator Soup
Calculator Soup: Factoring Calculator
The factoring calculator finds the factors and factor pairs of a positive or negative number. Enter an integer number to find its factors.
Sophia Learning
Sophia: Ripple Effects in Systems: Lesson 1
At the end of this tutorial, the learner will understand a change of behavior or components in one point of a system will cause changes throughout the system as whole. It is 1 of 3 in the series titled "Ripple Effects in Systems."
University of Cambridge
University of Cambridge: Nrich: What Are You Plotting?
This one page website is for practicing graphing ordered pairs. It lets you know right away if your choice is incorrect. At the bottom of the page their is a challenge with the solution just a click away.
Calculator Soup
Calculator Soup: Ratio Simplifier
Use this calculator to simplify ratios of the form A : B. A or B can be whole numbers, integers, decimal numbers, fractions or mixed numbers. They can be different types, for example, one fraction and one decimal. The ratio values can be...
Calculator Soup
Calculator Soup: Long Multiplication Calculator
Multiplication of positive or negative whole numbers or decimal numbers as the multiplicand and multiplier to calculate the product using long multiplication. The solution shows the work for the Standard Algorithm.
Calculator Soup
Calculator Soup: Long Division Calculator With Decimals
Do long division with decimal numbers and see the work for the calculation step-by-step. Enter positive or negative decimal numbers for divisor and dividend and calculate a quotient answer.
Calculator Soup
Calculator Soup: Fractions Average Calculator
This calculator finds the average of a set of fractions by adding all of the fractions and dividing by the number of fractions in the set. Enter positive or negative fractions, integers and mixed numbers and the calculator converts...
CK-12 Foundation
Ck 12: Arithmetic: Sums of Integers on a Number Line
[Free Registration/Login may be required to access all resource tools.] In this lesson students find sums of integers by using a number line. Students examine guided notes, review guided practice, watch instructional videos and attempt...
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...
University of Groningen
American History: Essays: The Iron Horse: What Was Impact of the Railroads?
From a lengthy essay on the history of the railroad in the United States. This section describes the positive economic benefits the construction of the railroads provided to the developing nation as a whole, and the negative impact it...
Varsity Tutors
Varsity Tutors: Hotmath: Graphing Calculator Practice Problems Integers
Practice using your graphing calculator for integer problems. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Integers
Find a quick, concise explanation of integers. A helpful diagram is given and clearly explained that shows the relationship of integers to other number groups.
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.
University of Cambridge
University of Cambridge: Nrich: Coordinate Tan
Enter the World of Tan. The solutions to these challenges are located right on the website.
University of Cambridge
University of Cambridge: Nrich: Coordinate Cunning
Play this game for two and learn how to graph ordered pairs on the coordinate plane at this one page website. You will know right away if you have the correct coordinates.
Illustrative Mathematics
Illustrative Mathematics: A Rei Radical Equations
The purpose of the task is to show students a situation where squaring both sides of an equation can result in an equation with more solutions than the original one, because it is possible to have two unequal numbers whose squares are...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: High School Basic Algebra Review
An overview of basic high school algebra topics can be found here. Absolute value, signed numbers, inequalities and equations, mixture problems, and direct and indirect variation are all listed, each with links to questions posed by...