Evaluating Expressions Ch.6.1-6.5

Find the value of 4^4

256

Write the phrase as an algebraic expression: $4 more than 6 times the cost of a pretzel

4 + 6p OR 6p + 4

Find the value of the expression: 20 ÷ 4 + 17 × (9 - 6)

56

Write 5 × 5 × 5 × 5 using an exponent

5^4

Algebraic Expression

A mathematical phrase combining at least one variable and at least one operation

Base

A number used as a factor

Variable

A symbol, usually a letter, used to represent a number

Which property does this expression represent? a + (b + c) = (a + b) + c

Associative Property

Which property does this expression represent? a + b = b + a

Commutative Property

32

Evaluate if y = 4 8y

6

Evaluate when m = 3, k = 10 20m ÷ k

60

Evaluate when m = 3, k = 10 2mk

18

Evaluate when m = 3, k = 10 3k - 4m

31

Evaluate when m = 3, k = 10 7m + k

30

Evaluate when m = 3, k = 10 m × k

G.E.M.S

Grouping, Exponents, Multiplication and Division, Subtraction and Addition

Which property does this expression represent? a + 0 = a OR a × 0 = a

Identity Property

Exponent

Tells us how may times the base is used as a factor

Commutative Property

The ORDER in which two numbers are added or multiplied does not change the sum or product

Order of Operations

The order in which we solve numeric and algebraic expressions

Identity Property

The sum of an addend and 0 is the addend. The product of a factor and 1 is the factor.

Associative Property

The way in which three numbers are GROUPED when added or multiplied does not change their sum or product

Evaluate

To find the value of something, such as an algebraic expression