Showing posts with label Natural numbers. Show all posts
Showing posts with label Natural numbers. Show all posts

Friday, September 21, 2012

Practice Counting Numbers

Practice counting Numbers:

A number is a numerical thing, which is used for calculating and counting. It is also referred as numeral and involves zero, negative numbers, rational numbers, irrational numbers, etc,.

The procedure of numerical function involves one or more numerical as income and generate its relevant numerical outcome. This function includes arithmetic operation such as addition, subtraction, multiplication, division, and exponentiation.

The numbers are classified as follows,

Natural numbers
Integers
Rational numbers
Real numbers
Complex numbers
Computable numbers
Prime number

Examples for Practice Counting Numbers:
Counting number is a positive number with countable of one, two, three, and so on. Sometimes it contains the integer zero (0) in the table of that counting numbers. So, it is also referred to as Natural number. The sign of natural number is ‘N’. Some case it is called as skip count because of each count must be done by skipping.

General Rules:

Counting numbers include some general rules. Let take ‘B’ is counting number then it follows

Add ‘B’ to the earlier number
Skipping and counting each further number by ‘B’.
Note: Here ‘B’ may be a number or symbol or object

Practice Counting Problems:

1solve the practice problem) Counting downwards from number 13 to 2 with numbers:

Solution:

Starting from 13 to 2

N = ( 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2)

solve the practice problem2) How many heart symbols are there in following set (♥, ♥, ♥, ♥)

Solution:

There are 4 heart symbols in the set

solve the pratice problem 3) Counting the number from 18 to 42 by 6’s

Solution:

Thus, the count by 6’s may be adding number 6 to the earlier number (Rule1)

So Start from 18= 18+6, 18+6+6.

N = (18,24, 30, 36, 42)

4) How many square numbers are there in 100

Solution:

Square numbers in 100 = (1, 4, 9, 16, 25, 36, 49, 64, 81, 100)

Therefore, total square numbers are 10 in the given set.

5) How many club suits are there in following set (♣, ♣, ♣, ♣, ♣)

Solution:

There are 5 club suit in given set

6) How many six letter words are there in the following set (tennis, ball, four, pen, hundred, street, head, man)

Solution:

Six letter words are tennis, street. Therefore, there are 2 six letter words.