Integers
What is the definition of integers?
whole numbers that can be positive or negative
What is the definition of absolute value?
a concept that helps us understand the distance of a number from zero on a number line
What is the definition of rational numbers?
numbers that can be written as fractions or decimals and their opposites
COMPARE: -13 __________ -10
less than
2, -3, 0, -4
-4, -3, 0, 2
What are opposites?
What is the opposite of this integer? -(-24)
Opposites are integers that are the same distance from 0 and on opposite sides of 0 on the number line
-24
10
Write a rational number in two ways to represent a number below sea level.
-a/b -16/1
-a.b -16.0
COMPARE: -12 ________ -15
greater than
-6, 8/2, -9.8, 13
-9.8, -6, 8/2, 13
What is a positive integer?
What is a negative integer?
Positive: any integer greater than 0
Negative: any integer less than 0
True or False:
Opposite integers have different absolute values.
False: they have the same absolute value because they are the same distance from zero
When comparing two rational numbers (positive or negative), how can you determine which rational number is the greater number?
If the number is negative, the greater number will be closer to zero.
If the number is positive, the greater number will be farthest to the right on a number line.
COMPARE: -3/4 _________ -0.7
less than
-3.25, |-3 1/8| -3 3/4, -3.1
-3 3/4, -3.25, -3.1, |-3 1/8|