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.

This sample chapter from Hurst's book Picturing Math is an excellent resource for using picture books and activities for learning computation.

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...

[Free Registration/Login Required] This picture-perfect picnic is all set for some subtraction practice! Count up the jelly beans to find out how many got eaten. This picture problem is a great first step to helping your child understand...

A brief lesson on subtracting from three-digit numbers that includes detailed examples, rules, and further explanation of borrowing.

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.

Find here flashcards for addition, subtraction, multiplication, and division for printing off and coloring.

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....

The purpose of this task is to help students develop flexible strategies for adding and subtracting within 20. Students will pick 5 number cards from pre-made cards labeled 1-10. Then, another student will pick a "target number" between...

Students will work as a class to solve word problems involving addition, subtraction, multiplication, and simple fractions. To culminate the instructional activity, students will create their own word problems.