Download presentation

Presentation is loading. Please wait.

Published byAlison Elliott Modified over 4 years ago

1
Warm Up Add or subtract. 1 + – 1515 1 1. 2525 2. 7 12 3 – 2 3. 6.5 + –1.2 4. 3.4 – 0.9 5.3 2.5 3535 11 12 1313 1

2
The Real Number System

3
A real number is basically a number that is somewhere on a number line. The Real Number System is divided into two categories: Rational and Irrational.

4
A rational number is any number that can be written as a fraction, where n and d are integers and d 0. n d

5
Fractions are rational numbers. Decimals that terminate or repeat are rational numbers. Whole numbers are rational numbers. Integers are rational numbers. 0 is a rational number.

6
An Irrational Number is a number that cannot be written as a simple fraction - the decimal goes on forever without repeating. It is called irrational because it cannot be written as a ratio (or fraction), not because it’s crazy!

7
π (Pi) is an irrational number. The value of Pi is 3.14159265358979323846264 3383279 (and more...) There is no pattern to the decimals, and you cannot write down a simple fraction that equals Pi.

8
Square roots of non-perfect “squares” are irrational. For example, is irrational.

9
Real numbers consist of all the rational and irrational numbers. The real number system has many subsets: –Natural Numbers –Whole Numbers –Integers

10
Natural numbers are the set of counting numbers. {1, 2, 3,…}

11
Whole numbers are the set of numbers that include 0 plus the set of natural numbers. {0, 1, 2, 3, 4, 5,…}

12
Integers are the set of whole numbers and their opposites. {…,-3, -2, -1, 0, 1, 2, 3,…}

13
Real Numbers Rational NumbersIrrational Numbers 3 1/2 -2 15% 2/3 1.456 -0.7 0 33 22 - 5 2 3434

14
Real Numbers Rational NumbersIrrational Numbers 3 1/2 -2 15% 2/3 1.456- 0.7 33 22 - 5 2 3434 Integers

15
Real Numbers Rational NumbersIrrational Numbers 3 1/2 -2 15% 2/3 1.456- 0.7 33 22 - 5 2 3434 Integers Whole

16
Real Numbers Rational NumbersIrrational Numbers 3 1/2 -2 15% 2/3 1.456- 0.7 0 33 22 - 5 2 3434 Integers Whole Natural

17
System

18
Where do these numbers belong? 0, ½, -3, , 117, 6.36,.3,

19
0 117 -3 1/2 6.36.3 System

Similar presentations

© 2020 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google