[Free Registration/Login may be required to access all resource tools.] The video lesson explains the relationship between repeated addition and multiplication. The video is followed by a series of practice questions to assess student...

This Skillswise site focuses on addition. Included are a video about why learning to add is important, fact sheets about addition, quizzes on the information presented, and games to practice the skill. Be aware that this is from Great...

[Free Registration/Login may be required to access all resource tools.] The video shows how to break down a word problem into two steps to solve an addition problem with numbers up to 100. The video is followed by a series of practice...

In this exercise, students practice addition word problems within 10. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

A nice tutorial on using the addition property of equality. Provides 4 different example problems that are worked through step-by-step and also provides some practice problems.

In this lesson, 1st graders will use keywords and place value charts to solve addition word problems.

[Free Registration/Login may be required to access all resource tools.] The video walks through solving addition problems to determine which problem is the correct addition sentence for the given sum. The video is followed by additional...

[Free Registration/Login may be required to access all resource tools.] The video describes how to determine which addition fact is related to the given addition problem. The video uses vocabulary of addends and sum. The video is...

[Free Registration/Login may be required to access all resource tools.] The video describes how to fill in a missing number in an addition problem by working backwards. The video is followed by practice problems to assess student...

Find a quick, concise explanation of the properties of addition. Examples are given and clearly explained for each property.

Practice solving more challenging word problems with addition and subtraction. Numbers used are 20 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Work against a timer as you test your ability to add and to solve word problems. Use number-line clue for help and score points. Fun activity for individuals, small groups, on an entire class.

Practice solving word problems by adding small numbers (numbers 10 or less). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Solve equations where the unknown is a matrix, by using matrix addition and subtraction. Students receive immediate feedback and have the opportunity to try questions repeatedly or receive hints.

[Free Registration/Login may be required to access all resource tools.] The video shows how to compare numbers in a word problem using multiple operations to find given values and the solutions to the questions posed in the problem. The...

[Free Registration/Login may be required to access all resource tools.] In this interactive media source, the video shows how to write a number sentence from counting groups of pencils, followed by practice problems to assess understanding.

FunBrain's easy addition facts game lets players race cars, fueled by correct answers, around a track.

Students can practice addition facts using the interactive matching games on this site.

Brush up on your math skills relating to additive inverses then try some practice problems to test your understanding.

[Free Registration/Login may be required to access all resource tools.] Here you'll learn how to add and subtract polynomials, as well as learn about the different parts of a polynomial. Practice problems are also included.

[Free Registration/Login Required] Number order in addition. Begin to recognize that addition can be done in any order. Order numbers and position them on a number track. Changing number order may ease mental calculation. Begin to...

[Free Registration/Login Required] This flipchart will get students involved as they manipulate animals to solve math word problems.

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...

[Free Registration/Login may be required to access all resource tools.] Add and subtract decimals with and without rounding