Square and Square Root of a Number : Square and Square Root of a Number Perfect Number
Irrational Number
Square of a Number : Square of a Number When a NUMBER is Multiplied by itself the result is Square of that NUMBER
NUMBER x NUMBER = Square of NUMBER
eg.
4 x 4 = 16 Here 16 is square of 4.
Square of a Number : Square of a Number Square of 1 = 1 x 1 = 1 Square of 2 = 2 x 2 = 4 Square of 3 = 3 x 3 = 9 Square of 4 = 4 x 4 = 16 Square of 5 = 5 x 5 = 25 Square of 6 = 6 x 6 = 36 Square of 7 = 7 x 7 = 49 Square of 8 = 8 x 8 = 72 Square of 9 = 9 x 9 = 81 Square of 10 = 10 x 10 = 100
Perfect Numbers : Perfect Numbers Numbers like 1, 4, 9, 16, 25, …….. ,100 ….
are PERFECT NUMBERS
These numbers are complete squares of any numbers.
Every whole number is a PERFECT NUMBERS ?
Yes No
Ans = NO
Slide 5 : SQUARE ROOT Square Root is opposite of Square
Def. : It is One of the two equal factors of a
number
Slide 6 : SQUARE ROOT Three ways to Calculate the Square Root of a Number 1. by simple Guess (Memorial) 2. Using LCM method 3. by proper division method type having certain rules. 4. Guess using Number Line method
Slide 7 :
Slide 8 : Using LCM method Calculate the Lowest Common Multiple of a Number Let us find Method : Go on Dividing the number
Starting from smallest prime numbers
and
Write the quotient below it
till it becomes 0
Slide 9 : Using LCM method 144 2 2 72 36 2 18 2 9 3 3 3 1
Slide 10 : Using LCM method
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