Pre-Algebra Chapter 1 Review

Translate Expressions

100

What is an algebraic expression?

An expression that has numbers, variable and operations symbols.

200

Write 3 more than twice p

3 + 2p

300

6 less than half of n

1/2n - 6

400

Evaluate 4x + 5y for x=9 and y=7

71

500

Evaluate 5k(6-6m) for k=2 and m=1/2

30

Order of Operations

100

Define PEMDAS using the real words.

Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction

200

4[(12 - 4) + 2]

40

300

9(2) + 8(7)

74

400

3[6 + (6 - 2)]

30

500

Sally, Molly, and Dolly spent $285 to make bracelets.  They sold the bracelets for $674.  If they spilt the profits evenly, how much did each person earn?

$130

Number Properties

100

12 x 0 = 0

Multiplicative Property of Zero

200

(3 + 4) + 5 = 3 + (4 + 5)

Associative Property of Addition

300

7 x 5 = 5 x 7

Commutative Property of Multiplication

400

58 + 0 = 58

Additive Identity

500

3 x 1 = 3

Multiplicative Identity

Variables and Expressions

100

Solve when a = 4 and b = 8

3a + b

20

200

Solve when a = 4 and b = 8 and c = 11

3a + 4b - c

33

300

Evaluate if a = 4, b = 8, and c = 11

12 + 3a + b

32

400

Evaluate when c = 11

16 - c

5

500

There are 36 inches in a yard.  Write an expression to find the number of yards in x inches.

x / 36

The Coordinate Plane

100

What is the domain of a relation?

the set of x-coordinates in a relation.

200

What is the range of the following relation:

(1,2), (5,6), (10,12)

(2, 6, 12)

300

An ___________ ______ gives the coordinates of a point.

ordered pair

400

Describe how you would get to point at (3, 6) include starting point.

Start at the origin and move three units right and six units up.

500

What is the difference between an expression and an equation.

Equation is a mathematical sentence with an equal sign.