7th Grade Math

Integers and the Coordinate Plane

PART A B C

Get ConnectED

Multi-Part

Lesson 1

GLE 0706.2.2

Understand and work with

the properties of and

operations on the system

of rational numbers.

SPI 0706.2.1 Simplify

numerical expressions

involving rational numbers.

Lesson 1B Integers and the Coordinate Plane 77

Integers and Absolute Value

SKATEBOARDING The bottom

of a skateboarding ramp is 8 feet below

street level. A value of -8 represents

8 feet below street level.

1. For this situation, what would a value
   of -10 represent?


2. The top deck of the ramp is 5 feet
   above street level. How can you
   represent 5 feet above street level?

Numbers like 5 and -8 are called integers. An integer is any number

from the set {..., -4, -3, -2, -1, 0, 1, 2, 3, 4, ...}, where ... means

continues without end.

WEATHER Write an integer for each situation.

an average temperature of 5 degrees below normal

Because it represents below normal, the integer is -5.

an average rainfall of 5 inches above normal

Because it represents above normal, the integer is +5 or 5.

WEATHER Write an integer for each situation.

a. 6 degrees above normal b. 2 inches below normal

Main Idea

Read and write

integers, and find the

absolute value of an

integer.

Vocabulary

integer

negative integer

positive integer

graph

absolute value

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• 5 - 4 - 3 - 2 - 1 0 + 1 + 2 + 3 + 4 + 5

Negative integers are

integers less than zero. They

are written with a - sign.

Zero is neither negative nor positive.

Positive integers are

integers greater than zero.

They are written with a + sign.

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