Math 8th grade review

Absolute Value

100

|100|

What is 100?

200

-|40|

What is -40?

300

|50-34+40|

What is 56?

400

-|-50+20+(-50)|

What is -80?

500

| 40*(-6) + 69|

What is 171?

Integer Operation

100

4+(-10)

What is -6?

200

-7-8

What is -15?

300

-4*12

What is -48?

400

-5(-60) + 55

What is 355?

500

-3 - (-5)

What is 2?

Classfying Numbers

100

sqrt2

(2 classifications)

What is irrational and real?

200

sqrt144

(5 classifications)

What is natural, whole, integer, rational, and real?

300

pi/4 

(2 classifications)

What is irrational and real?

400

0

(4 classifications!)

What is whole, integer, rational, and real?

500

sqrt(pi/pi)

(5 classifications)

What is natural, whole, integer, rational, and real?

Order of Operations

100

-(3*5 - 8) 

What is -7?

200

x^2*x^-5 

What is 

1/x^3 ?

300

5*2^2 -7

What is 13?

400

-3*sqrt(9+7)

What is -12?

500

[9+3(3-1)]^2

What is 225?

Combining Like Terms

100

15x +7x

What is 

22x?

200

-4x+11x^2 +3x

What is 

11x^2 -x ?

300

2sqrt2+3sqrt2

What is 

5sqrt2 ?

400

-5xy + 3y-y

What is

-5xy +2y

?

500

3/15 +(-2/15)

What is

1/15

?