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... `