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.
ClassFlow
Class Flow: K Addition and Subtraction Lesson
[Free Registration/Login Required] This flipchart contains vocabulary, strategies and various activities for K-1 Addition and Subtraction.
SMART Technologies
Smart: 65 Addition/subtraction Story Problems
Students may compare, join, separate numbers to solve these story problems. These are the tougher kinds of problems! There are also some of the more traditional, "easier" part/part/whole type of story problems here, as well.
Lesson Tutor
Lesson Tutor: Fraction Addition and Subtraction Lesson
This site is an online lesson plan of how to correctly add and subtract fractions is provided here. Many examples of the processes are worked out and the solutions provided. An elementary teacher looking for some useful advice and...
Other
Nearpod: Addition & Subtraction Within 20
In this lesson on addition and subtraction within 20, 1st graders learn how to solve addition and subtraction story problems by finding clue words. Adding three addends is also taught in this lesson.
CK-12 Foundation
Ck 12: Algebra: Inequalities With Addition and Subtraction
[Free Registration/Login may be required to access all resource tools.] Learn how to solve one-step inequalities using addition and subtraction.
Scholastic
Scholastic: Study Jams! Math: Addition & Subtraction: Properties of Addition
Sing a song, practice step by step and assess your knowledge on the properties of addition with this interactive lesson.
Teachnology
Teachnology: Arithmetic Theme
Arithmetic Theme provides an excellent collection of free sample worksheets, teacher resources, lesson plans and interactive media to support addition, subtraction, multiplication and division.
Teachnology
Teachnology: Arithmetic Theme
Arithmetic Theme provides an excellent collection of free sample worksheets, teacher resources, lesson plans and interactive media to support addition, subtraction, multiplication and division.
CK-12 Foundation
Ck 12: Algebra: Addition and Subtraction of Polynomials
[Free Registration/Login may be required to access all resource tools.] In this lesson students add and subtract polynomial expressions and simplify polynomials by combining like terms. Students can watch a video tutorial, explore guided...
CK-12 Foundation
Ck 12: Algebra: Linear Systems With Addition or Subtraction
[Free Registration/Login may be required to access all resource tools.] Solve systems of equations by addition or subtraction.
Math.com
Math.com: Equations and Inequalities: Addition & Subtraction Equations
Learners review how to solve algebraic equations using addition and subtraction. The tutorial consists of notes, examples, and practice exercises.
CK-12 Foundation
Ck 12: Algebra: Addition and Subtraction of Polynomials
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn to add and subtract polynomials. Students can watch a video tutorial, explore guided notes and attempt practice problems.
CK-12 Foundation
Ck 12: Arithmetic: Subtraction of Rational Numbers
[Free Registration/Login may be required to access all resource tools.] In this lesson, students learn how to subtract rational numbers. Students examine guided notes, review guided practice, watch instructional videos and attempt...
Organization for Community Networks
Ofcn Lesson Plan: Bean Toss
OFCN lesson to help students understand the concept of adding and subtracting positive and negative numbers.
E-learning for Kids
E Learning for Kids: Math: Hamburger Restaurant: Addition and Subtraction
On this interactive site students practice addition and subtraction skills. At the end of the lesson students will be able to solve addition problems using a formal written algorithm and use various strategies to solve unfamiliar problems.
Alabama Learning Exchange
Alex: Three Digit Subtraction
This lesson uses technology and literature to teach subtraction of three-digit numbers, including subtraction across zeros.
CK-12 Foundation
Ck 12: Algebra: Inequalities With Addition and Subtraction
[Free Registration/Login may be required to access all resource tools.] Solve inequalities using addition or subtraction
CK-12 Foundation
Ck 12: Algebra: Mental Math for Addition and Subtraction Equations
[Free Registration/Login may be required to access all resource tools.] Solve single variable addition and subtraction equations by using mental math
CK-12 Foundation
Ck 12: Algebra: Inequalities With Addition and Subtraction
[Free Registration/Login may be required to access all resource tools.] Learn how to solve one-step inequalities using addition and subtraction.
Scholastic
Scholastic: Study Jams! Math: Addition and Subtraction: Estimate Sum, Difference
Complete this step by step lesson to estimate the sum and difference then test yourself.
Other
Nearpod: Addition & Subtraction Equations
In this lesson on addition and subtraction equations, 1st graders will learn to identify the equal sign and will practice balancing equations.
Other
Nearpod: Addition & Subtraction: Winter Edition
In this lesson, 2nd graders will use keywords and the part-part-whole model to solve addition and subtraction word problems with 2-digit and 3-digit numbers.
CK-12 Foundation
Ck 12: Algebra: Single Variable Addition Equations
[Free Registration/Login may be required to access all resource tools.] Solve single variable addition equations