Mastery Check Review

Converting Rational Numbers

100

What is 5/11 as a decimal?

0.454545...

200

Change .33333.. to a fraction.

1/3

300

Write 2/3 as a decimal.

.666666666666666666

400

Write .12222222... as a fraction.

11/90

500

Turn .125125.... into a fraction.

125/999

Comparing Rational Numbers

100

Put 1/2, 2/3, 1/3 in order from least to greatest.

1/3, 1/2, 2/3

200

What is a rational number less than 3/4?

2/9

300

Which is greater? 14.999... or 75/5?

75/5

400

Which one is irrational .343434... or .5648936...?

.5648936...

500

Write a fraction between 2/5 and 3/4.

Anything between .4 and .75

Rational or Irrational Numbers

100

What is the most popular irrational number?

Pi

200

2.44444.. is irrational?

No

300

Write a square root that is rational.

perfect square root answers

400

Write a squre root that is irrational.

Any number that is not a perfect square answer.

500

Does the decimal .755555... convert to 34/45?

Yes

Exponent Rules

100

(2a²)(-3a)

-6a³

200

x⁴ / x²

x²

300

(2a)³

8a³

400

x^-2

1/x²

500

(4³ x 4⁹)² / 4⁵

4¹⁷

Square and Cube Roots

100

√4 (the square root of 4)

2

200

The cube root of 64

4

300

3(√25)

15

400

Jon has a square pool whose area is 144 feet squared. How wide is Jon's pool?

12 ft

500

2x³ + 12 = 28

x = 2