Download Sets of rational numbers

C2 Ch. 1 Lesson 2
 Examples
A ten yard loss.
4 inches of rain above normal.
A $48 deposit into a savings account.
 Order each set of integers on a number line.
1.
-3, 0, -2, 4
2.
8, -6, -9, 5
The distance between a number and 0 on the number line is called its absolute
value.
Opposites are numbers that are the same distance from zero in opposite
directions. Since 0 is not negative nor positive, 0 is its own opposite. The opposite of
the opposite of a number is the number itself.
1.
What is the absolute value of 3?
2.
What is the absolute value of -9.8?
3.
What is the opposite of 7?
4.
What is the opposite of -4?
5.
What is the opposite of the opposite of -3.6?
1.
Evaluate 5 + −6
2.
Evaluate −7 - 3
3.
Evaluate −9 + 3
4.
Evaluate −8 - −2
5.
Lily saw a jellyfish at 6 feet below sea level. She saw a bright blue fish at 10 feet
below sea level. What is the distance between the blue fish and the jellyfish?
A rational number is a number that can be expressed as a ratio of two
integers written as a fraction, in which the denominator is not zero.
Rational numbers
Whole
numbers
Integers
 Classify the following numbers:
A.
2
B.
-8
C.
-9.5
D.
E.
F.
12
6
1
3
−
4
5
A common denominator is a common multiple of the denominators of two or more
fractions. The least common denominator or LCD is the least common multiple of the
denominators. You can use the LCD to compare fractions.
5
7
Compare and
6
9
Compare −
9
7
and −
16
10
Order the set of numbers from least to greatest.
1 1
23%, 0.21, ,
4 5