1. Splash Screen

2. Read and write integers, and find the absolute value of a number.
negative integer
positive integer
graph
absolute value
Main Idea/Vocabulary

3. Write Integers for Real-Life Situations
Write an integer for the following situation.
a total rainfall of 2 inches below normal
Answer: Because it represents below normal, the integer is –2.
Example 1

4. Write Integers for Real-Life Situations
Write an integer for the following situation.
a seasonal snowfall of 3 inches above normal
Answer: Because it represents above normal, the integer is +3 or 3.
Example 2

5. Write an integer for the following situation
Write an integer for the following situation. a total snowfall of 5 inches above normal
A. –5
B. 5
C. 27
D. none of the above A B C D
Example 2

6. Write an integer for the following situation
Write an integer for the following situation. an average monthly temperature of 4 degrees below normal
A. –4
B. 4
C. 36
D. none of the above A B C D
Example 1

7. Graph the set of integers –1, 3, –2 on a number line.
Graph Integers
Graph the set of integers –1, 3, –2 on a number line.
Draw a number line. Then draw a dot at the location of each integer.
Example 3

8. Graph the set of integers –2, 1, –4 on a number line.C. D. A B C D
Example 3

9. KC 1

10. Evaluate the expression |–5|.
Evaluate Expressions
Evaluate the expression |–5|.
On the number line, the graph of –5 is 5 units from 0.
Answer: So, |–5| = 5.
Example 4

11. Evaluate the expression |3|.
Evaluate Expressions
Evaluate the expression |3|.
On the number line, the graph of 3 is 3 units from 0.
3 units right
Answer: So, |3| = 3.
Example 4

12. Evaluate the expression |–9|.
B. 0
C. 9
D. 81 A B C D
Example 4

13. Evaluate the expression |7|.
B. 0
C. -7
D. 49 A B C D
Example 4

14. Evaluate the expression |–4| – |–3|.
Evaluate Expressions
Evaluate the expression |–4| – |–3|.
Treat the “absolute value” like parenthesis (PEMDAS). DO THEM FIRST!!!
|–4| – |–3| |–4| = 4, |–3| = 3
4 – 3
1 Subtract.
Answer: 1
Example 5

15. Evaluate the expression |-8| + |5|.
Evaluate Expressions
Evaluate the expression |-8| + |5|.
Treat the “absolute value” like parenthesis (PEMDAS). DO THEM FIRST!!!
|-8| + |5| |-8| = 8, |5| = 5
8 + 5
13 Add
Answer: 1
Example 5

16. Evaluate the expression |8| – |–5|.
B. 3
C. 13
D. 40 A B C D
Example 5

17. Evaluate the expression |-2| + |4|.
B. -6
C. 2
D. 8 A B C D
Example 5

18. End of the Lesson
End of the Lesson