Integers and Absolute Value

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LESSON 2-1 Warm Up
Lesson 2-1 Warm Up
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LESSON 2-1 Warm Up
Lesson 2-1 Warm Up
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Integers and Absolute Value (2-1)

• integer all of the positive and negative whole
  numbers, including zero
• Example
• To compare numbers, put them on a number line.
  Numbers on the right are always bigger than
  numbers on the left. You can also write them all
  in decimal form and compare the place values from
  largest to smallest.
• Example
• opposites Two numbers that are the same distance
  from zero on a number line or in opposite
  directions from zero
• Example
• absolute value a numbers distance from zero
  shown by surrounding the number with these
  absolute value brackets
• Example -3 and 3 both have an absolute value
  of 3 (both are opposites that are 3 away from 0)
  -24 and 24 both have an absolute value of 24
  (both are 24 away from 0)

• What are integers?
• How can you compare the order of numbers?
• What are opposites?
• What is absolute value?

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Integers and Absolute Value
LESSON 2-1
Additional Examples

Find each absolute value.
a. 19
19. On the number line, 19 is 19 units from 0.
So, 19 19.
b. 67
On the number line, 67 is 67 units from 0. So,
67 67.
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Integers and Absolute Value
LESSON 2-1
Additional Examples
The lowest recorded temperature in Asia is
90ºF in North America, it is 81ºF. Which
continent has the lower recorded temperature?
The number with the greater absolute value is
90. Asia has the lower recorded temperature.
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Integers and Absolute Value
LESSON 2-1
Additional Examples
Evaluate 5 z for z 2.4.
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Integers and Absolute Value
LESSON 2-1
Lesson Quiz
1. The surface of the Dead Sea is about 1,300
feet below sea level. Use an integer to
represent this elevation. 2. Write the opposite
of 12. Find each absolute value. 3. 6 4.
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1,300
12
6
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