Math operations Long addition (three numbers) Long addition (three numbers): Practice long addition with three numbers Level game: 4th and 5th grade Math games recommended for You: Long addition Long subtraction Long multiplication 4th grade5th grade Share this Practice math games: Adding and subtracting negative numbers Decagrams to kilograms Prime and composite numbers Leave A Comment Cancel reply Save my name, email, and website in this browser for the next time I comment.