Number Sets
Name the sets of this number
-3
Real, Integer, Rational
Numbers we use for counting (1,2,3...)
What are natural numbers?
This is an example of what Number property? a + b = b + a
What is the commutative property of addition.
The numerical part of a term
What is a coefficient?
Which of the following subsets of the real number system best describes - 72
a. natural b. whole c. Integer
c. Integer
Name the sets of this number:
5
Real, Integer, Whole, Natural
The set of numbers that includes 0 and the natural numbers.
What are whole numbers?
If 6x = 18, then 18 = 6x
What is the symmetric property of multiplication?
Name the property
5(x - 3) = 5x - 15
What is the distributive property?
Whole numbers are closed under subtraction
a. True
b. False
b. False
Example 6 - 9 = -3 (Integer)
Name the sets of this number:
4/9
Real, Rational
The set of numbers that include the negatives of the natural numbers and the whole numbers.
What are integers?
Name the property: (a+b) +c= a + (b+c)
What is the associative property of addition?
a+ (-a)=0 or
-a+a=0
What is the inverse property of addition?
Which statement is true?
a. sqrt 64 is an irrational number
b. 0 is a natural number
c. .333 bar is a rational number
d. -7 is a whole number
c. .33 bar is a rational number
True this is a repeating decimal and can also be written as 1/3
Name the sets of this number:
3.14159265....
this is also known as pi
Real, Irrational
The set of numbers that can be expressed as a decimal or the quotient or two integers.
What are rational numbers?
If 6 x 2 = 12 and 12 = sq root 144, then 6 x 2 - Sq Root 144
What is the transative property?
a*1 = a or
1*a = a
What is the identity property of multiplication?
Which set of numbers is closed under subtraction?
a. natural numbers
b. whole numbers
c. even numbers
c. even numbers
example: 8 - 4 =4 Still even:)
Not natural 3 -8 = -5
and Not whole 0 - 2 = -2
Name the sets of this number:
1.4545454545...
another way to write this is 1. bar 45
Real, Rational
The set of numbers whose decimal representation are neither terminating (they don't end) nor repeating they do not have the repeating bar.
What are irrational numbers?
a x (b+t)= a x b + a x t
What is the distributive property of multiplication over addition?
7 * 0 = 0
What is the zero property?
What are ALL the subsets of - 18/9
a. rational & real
b. Integer, rational & real
c. whole, Integer, rational and real
b. Integer, rational, and real
-18/9 = -2
-2 is an integer, rational & real number