Post Turkey Eighth Grade Review!

Irrationals

100

What are the

sqrt(121)

 ?

-11, 11

200

Simplify:

3 sqrt(5) -7 sqrt(5)

-4 sqrt(5)

300

What 2 integers is the

sqrt(97)

between?

9 and 10

500

Simplify

sqrt(90)

3sqrt(10)

800

Simplify: 

-4sqrt(192)

-32sqrt(3)

Simplifying Exponents

100

-4^2

16

200

x^2 x^7

x^9

300

x^6 y^2 x^-3 y^5 x

x^4 y^7

500

(x^2 x^-5 y^2 x^4 y^3)^0

1

800

x^3 2^4 x^10 2^-3 + x^13

3x^13

Variables on One Side

100

4(2x-5)=44

x = 8

200

1/3 (15-6x)=-9

x = 7

300

Bonus Question 3!

What candy do I tell students has a transparent wrapper?

Twix

500

-93 = 7(-3k - 8) + 5

k = 2

800

-( -2 - 4x) + 5 (5 - 2x)= 35

x = - 4/3

or 

x = -1.333333333333333...

Now Both Sides Have Variables!

100

7x -2 = 4x -5

x = -1

200

9x - 4 = 11x +17

x = -21/2

or

x = -10.5

300

3(4x+2)=6(1+2x)

All real numbers.

500

1.5(4-.3x)= 1.2 (6 - x)

x = 1.6

800

3(4x-5)=6(4+2x)

No Solutions.

Other Equations

100

Solve and graph.

2(2x+3)<=-22

x<=-7

200

Bonus question 2!

What letters cannot be used as variables?

e and i.

300

abs(4x-2)= 18

x= -4, 5

500

Solve and graph.

5(10-3x)< 10(2-x)

x > 6

800

-3(x^3 -100)= -75

x = 5