Math Review PSSA Celebration

Math Review #1

100

I am 15 away from 0 on the number line in both directions

Absolute Value of 15 

15 and -15

Opposites

200

GCF of 36 and 45

9

300

16/44 in simplest form

4/11

400

4 5/9 as an improper fraction

41/9

500

60x+72 is what I am after the distributive property. Factor me ? (? + ?)

12(5x+6)

Math Review #2

100

2/3 + (-3/4)

-1/12

200

3 3/8 + 14 1/12

17 11/24

300

102.4=8(b+10.5)

b = 2.3

400

Simplify the expression

3x + 2 - 7y + 3x - 18 - 15x

-9x - 7y -16

500

Write 0.234444444444..... as a fraction in simplest from.

211/900

Math Review #3

100

rational or irrational? .1414141414141.....

rational

200

3x+16 = -20

x = -12

300

a^5(a^8)

a¹³

400

rational or irrational? square root of 123

irrational

500

Write in Scientific Notation

0.000000000000038

3.8 x 10^-14

Challenge Math

100

4% of 1000 is this.

40

200

7²+8²+9²

194

300

To the nearest hundredth, what is the hypotenuse of a right triangle with a base of 10 in and a height of 16 in?

18.87 inches

400

3n + 1.2= -4n - 0.9

n = -0.3

500

2/5(x+50)=20

x = 0

Calculator Challenge!!

100

If a 12 foot ladder is leaning against a wall with the base of the ladder 6 feet away from the wall, how high does the ladder reach up the wall? Round to Nearest tenth

10.4 feet

200

Solve for x. Keep in simplest fraction form.

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

 x = -2

300

To the nearest tenth, how far would you swim diagonally in a pool that measures 50 meters by 25 meters?

55.9 or 55.90 meters

400

 ((2x^2y^4z)/(4x^3y^2z^3))^2 

(y^4)/(4x^2z^4)

500

The equation for a line of best fit for a scatterplot that measures the number of widgets made(x) and total cost(y) is listed below. What is the cost per widget?

y = 3/2x+300

$1.50 per widget.