Pre-algebra Review

Christmas Cheer!

100

What do children get in their stocking when they have been naughty?

What is coal

200

What "spy" hides around the house, reporting back to Santa on who has been naughty or nice?

Who is the Elf on the Shelf

300

What beverage company has been using Santa Claus in its advertising since 1931?

What is Coca-Cola

400

In the Twelve Days of Christmas, what are there eleven of?

Pipers piping

500

What environmentalist U.S. president banned Christmas trees at the White House?

Who is President Theodore Roosevelt

Evaluating & Simplifying Expressions

100

-3(x + 8)

What is -3x+(-24)

200

Evaluate 5a + b, for a = 6 and b = 3

What is 33

300

Evaluate: 3ab-c, for a=4, b=2, and c=5

What is 19

400

2(2n - 11) + 10n

What is 14n-22

500

3(9k-4) - 4(5n-3)

What is 27k - 20n

Systems of Equations Elimination or Substitution

100

y = x + 5 

-2x + 7y = 20

What is (-3, 2)

200

y = 2x + 2

y = 5x - 7

What is (3, 8)

300

x - 7y = 18

4x - 14y = 30

What is (-3, -3)

400

y = -3x + 15 

-x - y = -9

What is (3, 6)

500

9x + 3y = -15 

-18x - 6y = 30

What is Infinite number of solutions

Polynomials

100

(2x²+3x-7) + (3x²-4x-10)

5x² - x - 17

200

(5x² -12x+1) - (2x² +3x-7) 

3x² -15x + 8

300

(x + 6) (x - 4)

x² + 2x - 24

400

Factor: 9x² - 16

(3x - 4)(3x + 4)

500

Factor: 5m² + 15m - 20

5(m -1)(m+4)

Solve Equations

100

y - 8 = -2

y=6

200

18m - 12m = 30

m=5

300

8n = 5n - 9

n=-3

400

−3(1 + 6r) = 14 − r

r= -1

500

−10n + 3(8+8n)=−6(n−4)

n= 0