Review (2.1-2.3)

The Real Number System

100

Name all the sets that the number belongs to.

-15

Real, Rational, Integers

200

Name all the sets that the number belongs to.

6

Real, Rational, Integer, Whole, Natural

300

Name all the sets that the number belongs to.

sqrt(30)

Real, Irrational

400

Name all the sets that the number belongs to.

0

Real, Rational, Integer, Whole

500

Name all the sets that the number belongs to.

17/3

Real, Rational

Squares & Square Roots

100

 sqrt(225)=? 

15

200

-sqrt(324)=?

-18

300

List the first 10 perfect squares.

1, 4, 9, 16, 25, 36, 49, 64, 81, 100

400

Estimate the non-perfect square:

sqrt(72)

approx8.5

500

Estimate the non-perfect square:

-sqrt(123)

approx-11.1

Comparing & Ordering Real Numbers

100

Which symbol will make this statement true? > , < , or =.

 -pi _______  -3.7 

>

200

What symbol will make this statement true?

  3/2  _________  sqrt(5) 

<

300

Put the decimals in order from least to greatest. 

0.65, -1.2, 0, 0.1, 0.8

-1.2, 0, 0.1, 0.65, 0.8

400

Put the numbers in order from least to greatest. 

 -1/5,0.9,-3.0,sqrt(63),2/3 

-3.0, -1/5, 2/3, 0.9, sqrt(63)

500

Put the following numbers in descending order.

  5/4, pi, sqrt(2), 0.333..., 3.6 

3.6, pi, sqrt(2) , 5/4, 0.333...