Valuing algebraic expressions

Vocabulary

100

A letter that is used to present a number but usually an unknown number.

Variable

200

Rules to follow when more than one operation is used in an expression or equation.

Order of operation / PEMDAS

300

Means to do repeated multiplication of a base number.

Powers

400

A small number written above and to the right of the other number (base) that tells you how many times to multiply that number by itself.

Exponent

500

The number placed in front of the variable (letter).

Coefficient

Order of operations without variables

100

(2³ - 4) / 2 =

2

200

(6 + 8) / 7 x 3 =

6

300

(10² - 3²) x 6 - 3 x 2 =

540

400

10² - 3² x 6 - 3 x 2 =

40

500

(12 + 12 - 3²) x 4 / 2 =

30

One variable expressions

100

Evaluate the expression when x = 13

x - 6 =

7

200

Evaluate the expression when b = 4

b + 11 - 7 =

8

300

Evaluate the expression when y = 3

12 / y + 3 = 

2

400

Evaluate the expression when x = 9

x / (9 - 6) =

3

500

Evaluate the expression when y = 6

(32 + 16) / y + 2 (y - 2)

16 

Two variable expressions

100

Evaluate the expression when x = 3 and y = 2,

x + 2 + y =

7

200

Evaluate the expression when x = 4 and y = 3,

2xy - 2 =   

22

300

Evaluate the expression when a = 5 and b = 6,

(a + 19) / b + 76 - 8

72

400

Evaluate the expression when x = 2 and y = 9,

x⁴ + y/ 3 + (6 - x) / 2 =

21

500

Evaluate the expression when x = 8 and y = 10,

(2x / (14 - y))³ - (y³ / 5x) =

39

Algebraic expressions basic knowledge

100

What are you supposed to substitute inside of?

Parenthesis 

200

How do you read this expression? 6c / 4

6 times c divided by 4

300

How do you solve this problem? 20 / 4(2)

From left to right.

400

What does PEMDAS stand for?

Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction

500

Which is the constant in: 3x + 6 - 9y

6