Cardinal numbers


Cardinal Numbers in Multiples of 10


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Cardinal numbers

Cardinal Numbers in Multiples of 10


Another set of cardinal numbers is given below, representing the multiples of 10.

10 – Ten

60 – Sixty

20 – Twenty

70 – Seventy

30 – Thirty

80 – Eighty

40 – Forty

90 – Ninety

50 – Fifty

100 – Hundred

The above cardinal numbers are commonly used for counting.

Cardinal Numbers 100 to 1000


100

One hundred

200

Two hundred

300

Three hundred

400

Four hundred

500

Five hundred

600

Six hundred

700

Seven hundred

800

Eight hundred

900

Nine hundred

1000

One thousand



Larger Cardinal Numbers

10,000

Ten Thousand

100,000

One hundred thousand

1,000,000

One million

10,000,000

Ten million

The large cardinal numbers are used when a bulk of objects or people or amount has to be represented. For example, the population of a city is 100,000 (one lakh).

Cardinal Numbers of a Set


The number of elements or members in a set is the cardinal number of that set. If A is a finite set and it has elements equal to N. Then the cardinal number of set A is N.
Note: The cardinal number of an empty set is always zero.
For example, set A = {1, 3, 6, 9, 10, 12, 18}, the cardinal number of set A is 7. Hence, n(A) = 7
Thus, the only formula for counting numbers is to find the number of elements of any set.

What is Cardinality?


The cardinality of a group or a set represents how many objects or elements are actually present in a group or in a set.
For example, if a pen-set has 7 pens in it, then the cardinality of pens is 7.

Difference Between Cardinal number and Ordinal Numbers


The ordinal numbers are different from cardinal numbers. Ordinals are the numbers that denote the position of something. If several objects are mentioned in a list, the order of the objects is defined by ordinal numbers. The adjective terms which are used to denote the order of something are 1st, 2nd, 3rd, 4th, 5th, 6th, and so on.
Examples:

  1. Anil came to 3rd position in a running competition.

  2. The 6th chair is broken in a hall.

Cardinal Numbers

Ordinal Numbers

They are used for counting purpose

They are used to denote rank or position or order of something or someone

Examples: 1, 2, 3, 5, 6, 10, etc.

Examples: 1st, 2nd, 5th, 6th, 9th, etc

Question type: ‘How many?’
For example: How many balls are there?

Question: ‘Where’ or ‘Which’
For example: Where is this located in the field? Or Which position does it hold in the ground?

Nominal Numbers


The nominal numbers are another type of numbers, different from cardinals and ordinals, used to name an object or a thing in a set of groups. It is used for the identification of something. It is not for representing the quantity or the position of an object.
Examples:

  1. Model numbers of Vehicles (Eg, MH-03-1000)

  2. Pincodes of various cities. (Eg. 481020)

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