The Real Number System
Real Number Properties
Order of Operations
Evaluating Expressions
Vocabulary
100
What is the best classification for -4
integer, rational, real
100
x + 9 = 9 + x Is an example of which property?
Commutative Property of Addition
100
Evaluate 9 - 5 ÷ (8-3) x 2 + 6
13
100
x + y + y when x = 9, y = 10
29
100
What is a reciprocal. Give an example.
A number that when multiplied by a number is 1. -3 = -1/3
200
What is the best classification for 0?
whole, integer, rational, real
200
2(x - 5) + 4 = 2x - 10 + 4 Is an example of which property?
Distributive Property
200
Evaluate 3 + 6 x (5 + 4) ÷ 3 - 7
14
200
p^3 + 10 + m when m=9 and p = 3
46
200
What is a perfect square? Give an example/
A number that when simplified comes out as a whole number. √ 121= 11
300
What is the best classification for √ 60
irrational, real
300
x + (y + 3) = (x + y) + 3 Is an example of which property?
Associative Property of Addition
300
Evaluate (36 - 3 x 4) / (15 - 9 ÷ 3)
2
300
z - ( y ÷ 3 - 1) when y = 3 and z = 7
7
300
What is absolute value? Give an example.
The distance a number is from zero. |-5| = 5
400
In your own words, describe what a rational number is. Give 3 examples.
A rational number is one that can be written as a ratio of two integers. It has a repeated decimal with a pattern or a decimal that stops. Examples √ 25, 1/4, 3
400
Give an example of the multiplicative inverse property
(x)(1/x) = 1
400
Mr. Smith charged Jill $32 for parts and $15 per hour for labor to repair her car. If he spent 3 hours repairing her car, how much does Jill owe him?
Jill owes $77
400
(y/2) + x + 4 + z + y when x = 7, y = 2, and z = 4
18
400
What is the symmetric property? Give an example.
If a = b then b = a
500
What is the best classification for 25/√ 3
Irrational, real
500
(x + 5)(7 + x) = x(7 + x) + 5(7 + x) Is an example of which property?
Distributive Property
500
(5/6)^2 ÷ (5/8 - 4/9)
3 11/13
500
12k - h^2 when h = -2 and k = 3
32
500
What is an expression? Give an example.
Numbers, variables, symbols, and operators grouped together to show the value of something 2x + 4