Rational Numbers Review-8th

Converting repeating decimals to fractions

100

Convert 0.111... to a fraction 

1/9

200

Convert 0.1666... to a fraction. 

1/6

300

Convert 0.54545... to a fraction 

6/11

400

Convert 0181818... to a fraction 

2/11

500

Convert 0.9090... to a fraction 

10/11

Identify Rational and Irrational Numbers

100

Is the decimal 9.888... rational or irrational? 

rational 

200

Is 3.256749867.... rational or irrational? 

irrational 

300

Is the square root of 72 rational or irrational? 

irrational 

400

is 27/5 a rational or irrational number? Why? 

Rational because it is a fraction. 

500

Is Pi rational or irrational? Why? 

Pi is irrational because it does not terminate, does not repeat and can not be turned into a fraction. 

Evaluate Square and Cubed Roots

100

What is the square root of 49

7

200

What is the cubed root of 64

4

300

What is the square root of 100? 

10

400

What is the cubed root of 729?

9

500

What is the square root of 324?

18

Estimating Irrational numbers

100

Approximate the square root of 39 to the nearest whole number? 

6

200

Between what two perfect squares is the square root of  15? 

3<15<4 

300

What is the estimated decimal for the square root of 72? (Round to the nearest 10th) 

8.5

400

What is the estimated decimal of the square root of 12? ( round to the nearest 10th) 

3.4

500

Put the following number in order from least to greatest. 

square root of 5, 3.7, 1/2, -4, -9/4 

-4, -9/4, 1/2, square root of 5, 3.7