Negative Numbers and the Number Line

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Negative Numbers and the Number Line

Unit 2 – Applying Absolute Value

Applying Absolute Value Example The table shows the temperature of four cities on a particular day in December. Which city had the highest temperature? ________ Which city had the lowest temperature? _________ How many degrees Celsius below zero were recorded for City A? ___________ What is the difference in temperature between City C and City B? ___________ City A B C D Temperature -6°C -10°C -20°C -2°C City D City C 6 degrees 10 degrees

Applying Absolute Value Independent Practice The table shows the temperature of four cities on a particular day in November. Which city had the highest temperature? __________ Which city had a temperature of 3°C below zero? ___________ Which city had a temperature greater than New York’s? _________ What was the difference in temperature between Chicago and Houston? ____________ City Minnesota Chicago Houston New York Temperature -3°C -8°C 12°C 3°C -8 -7 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7 8 9 10 11 12 Houston Minnesota Houston 20 degrees

Applying Absolute Value Alice is standing on a hill, which is 315 feet above sea level. Justin is standing on the ground which is 78 feet above sea level. A whale is swimming in the sea at 10 feet below sea level. A turtle is found 1,340 feet below sea level. Use positive and negative numbers to represent the locations with respect to sea level of Alice, Justin, the whale and the turtle. ___________________ Who is the closest to sea level? ________ Who is less than 500 feet below sea level? _____________ How far is Justin from the whale? ______ Alice: 315 ft, Justin: 78 ft Whale: -10 ft Turtle: -1,340 ft The whale The whale 88 feet

Applying Absolute Value The elevation of three oceans is shown in the table. Which ocean is closest to sea level? _________ Which oceans are deeper than 2,000 meters below sea level? _____________________ What is the difference in depth between the Pacific Ocean and the Artic Ocean? ________ Ocean Elevation (Below Sea Level) Pacific Ocean -4,028 meters Indian Ocean -3,890 meters Arctic Ocean -1,038 meters Artic Ocean Pacific Ocean & Indian Ocean 2,990 feet