Transcript Integers
Integers and
Absolute Value
1
What Are You Learning?
I
CAN find the absolute
value of rational numbers.
I CAN use integers to
represent various
situations.
I CAN compare integers.
2
Why Do I Need To Know This?
Using
rational numbers to
represent situations is
important because it allows
you to use rational numbers to
symbolize real world events
and situations.
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Vocabulary
Rational Numbers are numbers that can be
written as fractions, including terminating and
repeating decimals, and integers.
Integers are whole numbers and their opposites.
Negative integers are integers less than zero.
Positive integers are integers greater than zero.
Where might you find integers in the real world?
4
Notes
Zero is neither positive or negative.
Zero does NOT have an opposite.
5
Write an integer for each situation.
a.
The average temperature in Tennessee for May was 5 degrees
below normal.
b.
The average rainfall in Virginia for November was 5 inches above
normal.
c.
6°F below 0
d.
A loss of 11 yards
e.
A deposit of $16
f.
The price of a company’s stock fell 21 points in two days. Write
an integer to represent the amount the stock price fell.
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Write an integer that
represents a loss of $20
│-20│
2. -20
3. │20│
4. 20
1.
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
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16
17
18
19
20
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Write an integer for each situation.
a.
The temperature of the liquid is 4 degrees below
zero.
b.
Seawater freezes 2 degrees below zero.
c.
12 degrees above Celsius.
d.
A debt of $5.
e.
23 feet above the surface.
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Vocabulary
Absolute Value—the
distance the number
is from zero on a
number line.
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Find the absolute value.
a.
b.
c.
|-3|
|3|
g.
|1.9|
h.
|-5/6|
i.
|-6.5|
j.
|2.5|
k.
|5 5/8|
|-10|
d.
|-5|
e.
|5|
f.
|-12|
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Find the absolute value
|6|
b. |-6|
c. |-4|
d. |-5|
e. |-5| - |2|
f. |-4| - |-3|
a.
11
10
2. 4
3. -4
4. -10
25%
25%
-4
25%
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Evaluate │7 │ + │-3 │
25%
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
-1
0
10
1.
15
16
17
18
19
20
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Evaluate │3│ - │-2│
25%
25%
25%
25%
-1
2. -5
3. 5
4. 1
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
16
1
5
-5
-1
1.
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20
13
Determine whether each statement is true
or false. If false, give a counterexample.
a.
Every integer has an
absolute value.
b.
The absolute value of
every integer is positive.
14
Complete each sentence with a
word that makes it true.
a.
An integer is negative, positive, or ____.
b.
All _____ integers are less than zero.
c.
The opposite of a _______ number is
negative.
d.
The absolute value of an integer is never
________.
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To graph a point on a number line, draw a point on
the line at its location.
When 2 numbers are graphed on a number line, the
number to the left is always less than the number to
the right.
The number to the right is always greater than the
number to the left.
> greater than
< less than
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Use < or > to make each
statement true.
a.
-5
-3
a.
-10 -13
b.
-8
-4
b.
-9
c.
5
-1
-5
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Use < or > to make the statement
true.
-3 □ 5
1
2
3
4
5
6
7
8
9
10
21
22
23
24
25
26
27
28
29
30
11
12
13
14
15
25%
25%
16
17
+
<
25%
>
25%
=
>
2. <
3. =
4. +
1.
18
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20
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Class Work
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