ClassFlow
Class Flow: Teddy Addition/subtraction Problems
[Free Registration/Login Required] Use the teddy bear icons to solve teacher created word problems.
Other
Project Happy Child: Free Subtraction Worksheets
2000 basic subtraction worksheets are available at this web site. They can be printed and used for a variety of practice purposes. Some helpful hints are included to avoid mindless practice that could quickly become counter productive.
ClassFlow
Class Flow: Computation Number Slate
[Free Registration/Login Required] This flipchart was designed for creating math problems for working on computational math skills.
ClassFlow
Class Flow: Daily Math Practice
[Free Registration/Login Required] Use this flipchart as a short daily review. Modify the numbers in the flipchart to create enough pages for an entire year.
ClassFlow
Class Flow: Kindergarten Math
[Free Registration/Login Required] Flipchart pages for a variety of math concepts appropriate for the kindergarten level.
University of Cambridge
University of Cambridge: Nrich: Game Pass the Peas, Please
Use this game to improve your subtraction or addition skills. Gain skills in two areas at the same time! There is a "Get Printable Page," link at the top to print out materials you need. This game can also be altered to practice...
University of Cambridge
University of Cambridge: Nrich: Game Subtraction Squares
Use this game to improve your subtraction skills. You will not only need to know your subtraction facts you will also need to figure out a strategy to win! There is a "Get Printable Page," link at the top if you want to print it out to...
University of Cambridge
University of Cambridge: Nrich: Game Criss Cross Quiz
Use this online game to improve your subtraction or addition skills while you play on a coordinate plane gameboard. Gain skills in two areas at the same time! This game can also be altered to practice multiplication facts. There is a...
University of Cambridge
University of Cambridge: Nrich: Game Wild Jack
This math game is great for practice using all the operations: addition, subtraction, multiplication, and division. All you need is a deck of regular playing cards. Just follow the directions and you are in business.
Purple Math
Purplemath: Adding Polynomials
Demonstrates how to add polynomials using both the horizontal and vertical formats.
Purple Math
Purplemath: Operations on Functions
Demonstrates how to add, subtract, multiply, and divide functions. Includes an example of evaluation. Demystifies the notation.
University of Waterloo (Canada)
Math Frog: Arithmagic
Practice operations of mental math while the program timer runs.
Khan Academy
Khan Academy: Addition and Subtraction Word Problems 2
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.
SMART Technologies
Smart: Addition Strategies Fact Families
Smart Exchange is an online community that teachers can share resources. This SMART Notebook file is a great introduction to what fact families are and how 3 numbers can be related to one another. This fact house offers activities to...