Interactive
University of Cambridge

University of Cambridge: Nrich: Game Criss Cross Quiz

For Students 1st - 5th Standards
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...
Interactive
University of Cambridge

University of Cambridge: Nrich: Game Wild Jack

For Students Pre-K - 1st
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.
Activity
University of Cambridge

University of Cambridge: Nrich: 2, 4, 6, 8

For Students Pre-K - 1st Standards
On this one page website sharpen your logic, addition, and subtraction skills while working on this challenge. The solution is available to double check your solution.
Interactive
Mr. Martini's Classroom

Mr. Martini's Classroom: Big Number Flashcards: Subtraction Through 99

For Students 1st - 5th Standards
Learners can practice subtracting two-digit numbers through 99 with these interactive flashcards. The problems change color when the correct answer is given.
Handout
Purple Math

Purplemath: Special Factoring: Differences of Squares

For Students 9th - 10th Standards
Demonstrates how to use the formula for finding the differences of squares, and warns against trying to factor a sum of squares.
Whiteboard
SMART Technologies

Smart: Same Different Shape Color Matching

For Teachers Pre-K - 1st Standards
Students will identify similarities and differences using colors and shapes in this whiteboard lesson provided by SMART.
Interactive
Quia

Quia: Algebra Vocabulary Games

For Students 9th - 10th
This site offers review of fifteen algebra vocabulary words. Four games are offered, including matching, flashcards, concentration, and word search.