Interactive
Curated OER

Solving System of Equations by Addition

For Students 9th - 11th
In this Algebra I/Algebra II learning exercise, students solve systems of linear equations by addition.  The one page interactive learning exercise contains ten questions.  Answers and hints are provided.
Worksheet
Curated OER

One Step Equations (Addition)

For Students 3rd - 4th
In this math worksheet, students solve 40 one step equations which involve addition. Example: 45 + n= 56. Students solve each equation and tell the value of the variable.
Worksheet
Curated OER

Radical Addition and Subtraction

For Students 9th - 12th
For this algebra worksheet, high schoolers simplify radicals by reducing them to simplest forms then performing addition or subtraction if possible. There are 6 questions.
Worksheet
Curated OER

Algebra 1 Properties

For Students 8th - 9th
In this Algebra 1 properties worksheet, students match the name of the property with the expression for 14 properties used to evaluate and simplify algebraic expression.
Worksheet
Curated OER

Pre-Algebra Basic Operations: Decimals

For Students 6th - 7th
In this pre-algebra decimal worksheet, students complete a total of 28 problems performing multiplication, division, subtraction and addition of decimals and fractions. 
Worksheet
Curated OER

Expressions

For Students 8th - 9th
In this expressions worksheet, students solve and complete 16 different problems related to various expressions. First, they define each of the listed terms and know each given property. Then, students state the order of operations and...
Worksheet
Curated OER

Variables and Expressions

For Students 8th - 9th
In this variables and expressions worksheet, students solve and complete 20 different problems that include various types of expressions. First, they write a variable expression of each given algebraic expression. Then, students write an...
Lesson Plan
Curated OER

Writing Number Sentences

For Teachers 6th - 8th
Students practice writing number sentences. After reading real world problems, they describe the same situation by writing a number sentence. Students use algebra tiles, or counters, to demonstrate the use zero pairs in solving...
Lesson Plan
Curated OER

Grade 3: Palindrome Patterns

For Teachers 3rd
Third graders use addition to create numbers that are palindromes and organize their results to look for patterns. They make generalizations from patterns and practice reading large numbers and addition with regrouping.
Worksheet
Curated OER

Adding Signed Numbers

For Students 7th - 9th
In this middle school mathematics/Algebra I activity, students explore addition of signed numbers.  Problems are diagrammed on a number line for student interpretation.  The six page activity contains twenty-five problems with...
Lesson Plan
Curated OER

Combining Like Terms

For Teachers 8th - 9th
In this combining like terms worksheet, learners solve and complete 20 different problems that include combining like terms in various algebraic expressions. First, they define like terms to determine how to combine them. Then, students...
Worksheet
Curated OER

Addition and Algebraic Operations

For Students 6th - 9th
For this addition and algebra worksheet, students solve 19 questions in which they use basic addition and algebraic concepts. They can click on the Check box to find out if their answers are correct.
Lesson Plan
Curated OER

Addition Properties

For Teachers 3rd - 5th
Student study addition properties. In this addition properties lesson, students use multiple methods to solve various types of problems. Students illustrate and describe in various ways the Commutative Property of Addition. Students...
Worksheet
Curated OER

Collinear Points and the Segment Addition Postulate

For Students 9th - 12th
In this algebra worksheet, learners set up equations using the segment addition postulate in order to solve for the variable x. There are 4 questions.
Lesson Plan
Virginia Department of Education

Properties of Operations

For Students 8th Standards
Explore the definitions of algebraic properties through a hands-on activity. Individuals cut and paste examples and match them to the correct properties. After examining the provided examples, pupils create examples of their own.
Assessment
Inside Mathematics

Magic Squares

For Teachers 9th - 12th Standards
Prompt scholars to complete a magic square using only variables. Then they can attempt to solve a numerical magic square using algebra. 
Activity
Curated OER

Math Games for Skills and Concepts

For Teachers 2nd - 5th
A 27-page packet full of math games and activities builds on algebra, measurement, geometry, fractional, and graphing skills. Young mathematicians participate in math games collaboratively, promoting teamwork and skills practice.
Lesson Plan
Virginia Department of Education

Pick and Choose

For Teachers 6th
Properly teach properties with three activities that allow learners to investigate properties of real numbers. The resource covers the identity properties for addition and multiplication, the inverse property for multiplication, and the...
PPT
Curated OER

Who Wants to Win Millions: Variables

For Teachers 4th - 5th
Lead your class on an exploration of basic algebra using this resource. As part of a game, learners answer algebra questions involving addition, subtraction, multiplication, and division. 
Unit Plan
Mathematics Vision Project

Module 4: Equations and Inequalities

For Students 8th - 10th Standards
Can you justify that mathematically?  Help learners see the process of solving as using mathematical properties rather than a set of steps to memorize in the fourth module of a nine-part Algebra I series. The module contains six...
Unit Plan
Mathematics Vision Project

Module 3: Numbers and Operations

For Students 10th - 12th Standards
Bring some concrete reasoning to the skills of multiplying and combining terms. Using various strategies, the six activities in the module provide practice for the skills of adding, subtracting, multiplying, and diving polynomials. The...
Worksheet
Curated OER

Combining Like Terms

For Students 8th - 9th
In this activity, algebra learners solve and complete 20 different equations that include combining like terms. First, they identify and define like terms and how they can be combined in solving an equation. Then, students combine like...
Lesson Plan
EngageNY

Replacing Letters with Numbers II

For Teachers 6th Standards
Teach about properties properly. Individuals investigate the commutative and identity properties for both addition and multiplication. They see that the properties hold true for all values by using substitution to test out several examples.
Assessment
1
1
California Education Partners

Least and Greatest

For Students 7th Standards
Squares can be magic. Pupils use their knowledge of addition of positive and negative rational numbers to create a 3 X 3 magic square where the sums are 1. Scholars create addition and multiplication expressions with a set of rational...

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