Download whole numbers

Do Now 9/17/09

Take out HW from last night.


Copy HW in your planner.


“One Left Out” worksheet
Text p.68, #20-50 evens
In your journal, continue to work on the NJASK7
prep question from yesterday.
Homework
“One Left Out”








1)
2)
3)
4)
5)
6)
7)
8)
3+5x9
25 – 65 / 5
24 / 6 x 4
16 – 8 + 9
45 – 4 x 5
9+6/3
9 – (8 – 7)
32 / (8 / 4)







9) 50 – (20 +30)
10) 48 / (4 + 12)
11) 12 x (36 / 9)
12) 17 + (7 – 6)
13) (10 – 6) + (12 + 9)
14) (1 +4 ) x (2 +3)
15) [15 – (4+1)]²
The keys of a piano.
Objective

SWBAT graph and compare positive and
negative numbers.
Section 2.1, “Use Integers and
Rational Numbers”
WHOLE NUMBER
a number that is whole (no
decimal) and positive.
0, 1, 2, 3, …
INTEGER
all whole numbers and
there opposites.
… -3, -2, -1, 0, 1, 2, 3, …
RATIONAL NUMBER
numbers that can be written
as the quotient of two integers
(a fraction).
… -3,-2.5, -2, -1 ½, -1, 0, 1, 1 ½, 2, 2.5, 3, …
REAL NUMBER
the set of all rational and
irrational numbers.
Using the categories REAL NUMBERS, INTEGERS,
RATIONAL NUMBERS, and WHOLE NUMBERS label the
VENN diagram below.
Real Numbers
Rational Numbers
Integers
Integers
-3,-2,-1, 0,1,2,3…
Whole Numbers
0,1,2,3,4,5…
Whole
Numbers
Rational Numbers
numbers that can
represented as a
ratio or fraction
a
,b  0
b

OPPOSITES

-5
Two numbers that are the same distance from ZERO.
-4
-3
-2
negative
What is the opposite of -3?
-1
0
zero
1
2
3
4
positive
Opposite of -3 = 3
5

ABSOLUTE VALUE

-5
The distance a number is away from ZERO. Distance is
always positive.
-4
-3
-2
negative
-1
0
1
2
zero
What is the absolute value of -4? or |-4|
3
4
5
positive
|-4| = 4
What is -|-4|
-|-4| = -4

CONDITIONAL STATEMENT



Has a hypothesis and a conclusion. An IF-THEN STATEMENT
is a conditional statement where the ‘if’ is the hypothesis
and the ‘then’ is the conclusion.
IF-THEN STATEMENTS are either TRUE or FALSE.
If the statement is FALSE, solve it by providing a
COUNTEREXAMPLE.
If a number is positive, then its opposite is positive.
If a number is a rational number,
then the number is an integer.
FALSE; the number
would be negative.
FALSE; 0.5 is an example of a
rational number that is not an integer.
Guided Practice

Text p. 68, #11-16
Homework

Text p.68, #20-50 even