Difference between revisions of "Types of Number"
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+ | =Overview= | ||
+ | <youtube>PFSYJ7uOiOk</youtube> | ||
+ | |||
+ | https://www.youtube.com/watch?v=PFSYJ7uOiOk&list=PLCiOXwirraUCa2MYf_oSM94uvwIGPMZ1q | ||
+ | |||
==Natural Numbers== | ==Natural Numbers== | ||
A positive whole number including zero. Represented as N = (0,1,2,3,4 ....) | A positive whole number including zero. Represented as N = (0,1,2,3,4 ....) | ||
+ | [[File:N.jpg|50px]] | ||
==Integer Numbers== | ==Integer Numbers== | ||
− | + | Integers are like whole numbers, but they also include negative numbers ... but still no fractions allowed. Represented as Z = (...,-2,-1,0,1,2,...) | |
+ | [[File:Integer.jpg|50px]] | ||
+ | |||
==Rational Numbers== | ==Rational Numbers== | ||
− | A number that can be expressed as a fraction or ratio. Represented as Q | + | A number that can be expressed as a fraction or ratio. An example of this is 8 or even 1/8. Represented as Q |
+ | [[File:Rational.jpg|50px]] | ||
==Irrational Numbers== | ==Irrational Numbers== | ||
− | A number that cannot be represented as a fraction or ratio, the decimal form will contain infinite repeating values. | + | A number that cannot be represented as a fraction or ratio, the decimal form will contain infinite repeating values. An example of this is √7 because it cannot be simplified. |
+ | [[File:Irrational.jpg|50px]] | ||
==Real Numbers== | ==Real Numbers== | ||
Any positive or negative number with or without a fractional part. | Any positive or negative number with or without a fractional part. | ||
+ | [[File:Real.jpg|50px]] | ||
==Ordinal Numbers== | ==Ordinal Numbers== | ||
− | A number used to identify the relative position of one number to another. | + | A number used to identify the relative position of one number to another. Unlike the other types of numbers it does not have a representative symbol. An example of this would be 1st, 2nd, 3rd. |
+ | [[File:Ordinal numbers.jpg|100px]] | ||
==Cardinal Numbers== | ==Cardinal Numbers== | ||
− | A number | + | A Cardinal Number is a number that says how many of something there are, such as one, two, three, four, five. |
=Revision= | =Revision= | ||
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|| Integers are positive or negative | || Integers are positive or negative | ||
− | { | + | {What is this number an example of '29th' |
+ | |type="()"} | ||
+ | - Natural Number | ||
+ | ||Natural numbers are only positive integers | ||
+ | + Ordinal number | ||
+ | || A number used to identify the relative position of one number to another. | ||
+ | - Real Number | ||
+ | || All integers are also real numbers | ||
+ | - Integer | ||
+ | || Integers are positive or negative | ||
+ | |||
+ | {What is the symbol 'Z' representative of | ||
+ | |type="()"} | ||
+ | - Natural Number | ||
+ | ||Natural numbers are only positive integers | ||
+ | - Ordinal number | ||
+ | || A number used to identify the relative position of one number to another. | ||
+ | - Real Number | ||
+ | || All integers are also real numbers | ||
+ | + Integer | ||
+ | || Integers are positive or negative | ||
+ | |||
+ | { What is the difference between natural numbers and integers? | ||
+ | |type="()"} | ||
+ | + Integers can include negatives | ||
+ | || This is correct. | ||
+ | - Natural numbers can include negatives | ||
+ | || Natural numbers can only be positives. Integers can be negative or positive. | ||
+ | - Natural numbers have to be a whole number | ||
+ | || Both integers and natural numbers must be whole numbers. | ||
+ | - Integers can include 0 | ||
+ | || Both integers and natural numbers can include 0. | ||
+ | |||
+ | { | ||
| type="{}"} | | type="{}"} | ||
− | + | What type of number is used for identifying the size of something? | |
− | { | + | { cardinal|Cardinal|CARDINAL } |
− | || | + | |
− | |||
− | |||
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</quiz> | </quiz> |
Latest revision as of 14:30, 11 September 2018
Contents
Overview
https://www.youtube.com/watch?v=PFSYJ7uOiOk&list=PLCiOXwirraUCa2MYf_oSM94uvwIGPMZ1q
Natural Numbers
A positive whole number including zero. Represented as N = (0,1,2,3,4 ....)
Integer Numbers
Integers are like whole numbers, but they also include negative numbers ... but still no fractions allowed. Represented as Z = (...,-2,-1,0,1,2,...)
Rational Numbers
A number that can be expressed as a fraction or ratio. An example of this is 8 or even 1/8. Represented as Q
Irrational Numbers
A number that cannot be represented as a fraction or ratio, the decimal form will contain infinite repeating values. An example of this is √7 because it cannot be simplified.
Real Numbers
Any positive or negative number with or without a fractional part.
Ordinal Numbers
A number used to identify the relative position of one number to another. Unlike the other types of numbers it does not have a representative symbol. An example of this would be 1st, 2nd, 3rd.
Cardinal Numbers
A Cardinal Number is a number that says how many of something there are, such as one, two, three, four, five.