Q2 Review

Exponents/CLT

100

Simplify 2⁰

1

200

Simplify 4² x 4⁶

4⁸

300

3x³ + 2 - 4x² - 2x³ - 6

x³ - 4x² - 4

400

4x² * -3xy * -x

12x⁴y

500

3x²y^-2/12xy⁵

x/4y⁷

Scientific Notation

100

Write 900 in scientific notation.

9 x 10²

200

Write 4.6 x 10⁴ in standard form.

46000

300

(40 x 10⁷)/(10 x 10⁵)

4 x 10²

400

Solve (3 x 10^-3) x (2 x 10²)

6 x 10^-1

500

Solve (13 x 10⁴) x (11 x 10⁶) and put it in scientific notation.

1.43 x 10¹²

Percents

100

What is 10% of 45?

4.5

200

What percentage of 55 is 33?

60%

300

A shirt is on sale for 25% off and is normally priced at $30. What is the sale price?

$22.50

400

I have a meal at Olive Garden priced at $14.50 without tax. I tip 15% . What is my final bill without tax?

$16.68

500

A TV costs $450 before tax. I have a coupon for 30% off. Tax is 7.5%. What is my final cost after tax and coupon?

$338.63

Probability

100

What are the odds of rolling 4 on a dice?

1:5

200

A spinner has 10 sections labelled from 1-10.  What is the P(spinning a number less than 4)

3/10

300

Ms. B has a bag with 4 green marbles, 2 blue marbles, 5 red marbles, and 1 purple marble. What is the probability that she pulls out a green or blue marble?

1/2

400

There are 20 slips of papers with names on them in a bowl. 3/20 are 3 letter names, 7/20 are 4 letter names, 6/20 are 5 letter names, and 4/20 are 6 letter names. What is probability of pulling a name with an odd number of letters?

9/20

500

My jar of Jolly Ranchers only has grape, apple and cherry left.  If the P(grape) = 0.3 and the P(apple) = ³/₅, find the P(cherry)

0.1 or 10% or ¹/₁₀

Proportions

100

Find the constant of proportionality using the points (3, 5); (9, 15); (30, 50)

5/3

200

What is the COP?
x      y

2     15

4     30

5     37.5

7.5

300

Solve for x.

x/13 = 15/65

x=3

400

I ran 4.5 miles in 3 hours. What was my unit rate for my running speed (miles per hour)?

1.5 miles per hour

500

Find x 

23/x = 36.8/32

x=20