Number properties Thermometer Thermometer: Practice reading the temperature (learning negative numbers). Level game: 4th, 5th, 6th and 7th grade Math games recommended for You: Adding negative numbers Subtracting negative numbers 4th grade5th grade6th grade7th grade Share this Practice math games: Order of operations (difficult) Decimeters to kilometers Millimeters to centimeters Leave A Comment Cancel reply Save my name, email, and website in this browser for the next time I comment.