Oswego City School District
Regents Exam Prep Center: Solving Systems Using Addition or Subtraction
Three examples are used to demonstrate solving a system of linear equations algebraically using addition and subtraction. The examples cover different situations that occur with the coefficients of the variable terms. Includes several...
Teachnology
Teachnology: Addition and Subtraction Teaching Theme
Addition and Subtraction Math Theme provides an excellent collection of free sample worksheets, teacher resources, lesson plans and interactive media to support addition and subtraction skills.
CK-12 Foundation
Ck 12: Trigonometry: Cosine Sum and Difference Formulas
[Free Registration/Login may be required to access all resource tools.] Examples, videos, and practice problems covering cosine of a sum or difference related to a set of cosine and sine functions. Here you'll learn to rewrite cosine...
Ducksters
Ducksters: Kids Math: Solving Algebra Equations With Addition and Subtraction
Kids learn about Solving Algebra Equations with Addition and Subtraction. Add and subtract from both sides. Example math problems are shown on page.
PBS
Pbs: Word Problems Using Addition and Subtraction of Fractions: Harry Gets Locked Up
This video features Harry and his cousin Harley. Harley is desperate to use Harry's bike, but first he must decipher the combination to the bike lock by solving a word problem. In the accompanying classroom activity, students complete a...
ABCya
Abc Ya: Math Fact Shoot Out
Use multiplication, division, addition, or subtraction to play this math basketball game. Choose your operation and level to try to collect basketballs to use for shooting free throws. Each correct answer earns you one basketball - the...
Books in the Classroom
Carol Hurst's Children's Literature Site: Computation and Picture Books
This sample chapter from Hurst's book Picturing Math is an excellent resource for using picture books and activities for learning computation.
Teaching Treasures Publications
Teaching Treasures: Year Three Math (Page 5)
Sharpen your computation skills with two-digit addition, two-digit subtraction, and one-digit multiplication facts using this interactive worksheet. Learners must be familiar with multiplication facts through twelve to be successful....
Other
Art of Math: Making Math Fun
This site offers customizable math challenges to help students master their math facts. Options include skill, age, and difficulty level as well as number of problems.
University of Texas at Austin
University of Texas: Elementary Math Club: Number Paths
Learners explore connections between addition, subtraction, and multiplication. In addition, students review place value and learn about the distributive law. The lesson plan includes an overview and a lesson toolkit.
AAA Math
Aaa Math: Aaa Math Lessons
AAA Math's interactive tutorials and lessons assist students grades K-8 improve their understanding of a wide range of arithmetic topics. Students are provided with immediate feedback as they complete the "Learn," "Practice," and "Play"...
Discovery Education
Discovery Education: Everyday Math
Students will work as a class to solve word problems involving addition, subtraction, multiplication, and simple fractions. To culminate the lesson, students will create their own word problems.
Better Lesson
Better Lesson: Math Centers Review Previous Skills
Students will be able to independently practice graphing, teen numbers, and addition.
Math Aids
Math Aids: Function Table Worksheets
Great resource to practice and strengthen math skills pertaining to function tables. Math worksheets are printable, may be customized, and include answer keys.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra: Linear Equations in One Variable
After completing this tutorial, you'll know what a linear equation is and how to solve one using various arithmetic properties. Contains several definitions, problems with step-by-step solutions, and practice exercises. Includes links to...
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Adding & Sub. Rational Expressions
Rational expressions have never been so easy! Use this site to learn how to add and subtract them with ease and confidence. And common denominators? No Problem! Great practice problems are included to see how much you've learned.
Alabama Learning Exchange
Alex: Get It Straight Mr. Decimal!
Students will review addition and subtraction of decimals with a hands-on, cooperative small group experience. They will be placed in small groups and solve problems on individual whiteboards. This lesson plan was created as a result of...
Math Aids
Math Aids: Mixed Problems Worksheets
Great resource to practice and strengthen math skills pertaining to mixed problems. Math worksheets are printable, may be customized, and include answer keys.
Thomas Jefferson National Accelerator Facility
Jefferson Lab: Speed Math Deluxe
The goal of SpeedMath Deluxe is to create an equation, as quickly as possible, from the four digits the computer gives you. You can use addition, subtraction, multiplication and division to create your equation, but you are not allowed...
Cool Math
Coolmath: Coolmath4kids: Printable Flash Cards
Find here flashcards for addition, subtraction, multiplication, and division for printing off and coloring.
Oswego City School District
Regents Exam Prep Center: Adding and Subtracting Polynomials
A detailed explanation of polynomials and like terms is followed with many examples of how to add and subtract them. Lessons for the teacher as well as interactive examples for the students provide plenty of opportunities for practice....
McGraw Hill
Glencoe Mathematics: Online Study Tools: Self Check Quiz on Matrices
Learners demonstrate comprehension of advanced mathematical concepts in Algebra II. The questions check understanding on matrices. Topics include matrix addition, subtraction, and multiplication.
Oswego City School District
Regents Exam Prep Center: Adding and Subtracting Complex Numbers
This site contains great information on adding and subtracting complex numbers. Several examples are given, along with a brief definition. Includes link to a graphing calculator tutorial.
Alabama Learning Exchange
Alex: Let's Go Shopping!
This lesson will give students practice with adding and subtracting money using a calculator. It will provide them an opportunity to determine savings using a store coupon, and determine the change they should recieve when making...