Pre Algebra Review

PEMDAS

100

20 - 6 x 2 +1

What is 9?

200

5² + 6 - 2 x 8

What is 15?

300

15(30 - 28) + 4 / 2

What is 32?

400

2(4 x 10) - 25 x 2 + 4

What is 34?

Algebraic Expressions

100

4a + 9b 

if a = 2 and b = 4

What is 44?

200

y² - 4xy

if x = -2 and y = 4

What is 48?

300

x² + 4x²y

if x = -3 and y = 3

What is 117?

400

a² - b² / a + b 

if a = 3 and b = 4

What is -1?

Combining Like Terms

100

23a - 4b + 14a + 4b

What is 37a ?

200

2x + 3y + 14x - y

What is 16x + 2y ?

300

2x² + 9y - 15x² -3y

What is -13x² + 6y ?

400

2ab + 9a + 11ab - 1ab 

What is 12ab + 9a ?

Distributive Property

100

2(x + 15)

What is 2x + 30?

200

3a(4a - 7)

What is 12a² - 21a?

300

a(4b - 2a)

What is 4ab - 2a² ?

400

7x(-4xy + 2y)

What is -28x² + 14xy ?

Translating Expressions

100

Product of a number and -7

What is -7x ?

200

Qoutient of a number and 5 increased by 2

What is x/5 + 2?

300

The product of a number and 5 decreased by 1 is 10

5x - 1 = 10

400

The product of a number and 2 is no more than -28

2x less than or equal to -28 ?