Download Unit 3 Rational Numbers Notes.notebook

Unit 3 Rational Numbers Notes.notebook
September 14, 2015
Unit 3 Rational Numbers Notes.notebook
September 14, 2015
Number Set in Mathematics
Unit 3 Rational Numbers Notes.notebook
September 14, 2015
Reading that Math:
The rational numbers, Q, are defined as, =, the set of all numbers, {}, that can be written as a fraction, , where m and n are an element of, , the set of Integers, I, where n cannot equal, , zero. Math is wordy! Which is why symbols are used. Then the math can be read by anyone as the symbols are used internationally. Number Lines
­8 ­7 V
­6
­6
­10
­9
­10
­9
­8
­7
­6
­5 ­4
­10
­9
­8
­7
­6
­5 ­4
­5 ­4
­3
­2 ­1
­5
­3 ­2
­1
­1
­2 ­1
K ­3 ­9
­44 E5
0
1
2
3
00
1
J2
3
4
0
1
C2
3
4
6
7
8
9
10
5
6
7
8
9
10
­85
6
7
8
9
10
Unit 3 Rational Numbers Notes.notebook
-3
-2 7
3
12
12
­10 ­9
­8 ­7
­6
­5 ­4
­3
­3
­10 ­9
­8 ­7
­3
­6
­5 ­4
­3
­2
­1
0
-2 1
­2
­1
0
1
1
5
­10 ­9
-3 4
­8 ­7
­6
7
­10 ­9
­8 ­7
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­6
­5 ­4
­3
­3
-2 5
7
0
­3 ­1
-2 7
8
0
­5 ­4 ­3
­2
­2
­1
1
2
3
4
­2 39 4
-1
10
2
2
3
­24
5
6
5
6
5
6
­27
7
8
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9
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-1 3
7
8
7
1
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­26
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Unit 3 Rational Numbers Notes.notebook
You try these:
September 14, 2015
Unit 3 Rational Numbers Notes.notebook
and these:
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Unit 3 Rational Numbers Notes.notebook
September 14, 2015
Any number that can be written as a ratio of integers are rational, so don't forget about these:
Unit 3 Rational Numbers Notes.notebook
September 14, 2015
What is a
rational number?
Write 4 as a
5
decimal.
State two
rational numbers between
­5.4 and ­5.5
You must be specific
about three things!
Express A as a mixed fraction.
5
A
6
Write two equivalent fractions!
­8
9
Unit 3 Rational Numbers Notes.notebook
September 14, 2015
Find two rational numbers between...
(Decimals may be used on this side.)
­3
8
­4
8
(NO Decimals please!!.)
5
8
6
8
Unit 3 Rational Numbers Notes.notebook
September 14, 2015
Which rational number is larger??
(Decimals may be used on this side.)
­12
15
­13
16
(NO Decimals please!!.)
2
3
3
4
Unit 3 Rational Numbers Notes.notebook
*Might be easier for this one to convert to decimals, get the numbers, and change back to fractions.
= ­0.5 and ­0.25
So, ­0.3, ­0.4, and ­0.45 are between them.
As fractions: , , and September 14, 2015
Unit 3 Rational Numbers Notes.notebook
b)
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Unit 3 Rational Numbers Notes.notebook
Textbook Practice: Pg 101 #5 ­ 7, 9, 11, 12.
Pg. 102 #14aceg, 21.
Pg. 103 # 27.
September 14, 2015