Math operations Square numbers (perfect squares) Square numbers (perfect squares): Practice evaluating square numbers. Game level: 4th and 5th grade Math games recommended for You: Cube numbers (perfect cubes) 4th grade5th grade Share this Practice math games: Kilograms to tons Adding and subtracting negative numbers One-step equations (subtraction) Leave A Comment Cancel reply Save my name, email, and website in this browser for the next time I comment.