
Square root is symbolized by ( √ ) . √9 is 3 because 3×3=9.Finding Small numbers of square root is easy, For big numbers you need to learn trick .Trick is provided bellow .after learning tricks you will be to find square root of any number.
Before going to tricks some basic examples
Some examples:-
√4=2
√16=4
√25=5
How do I calculate square root:-
Square root is done by three steps
Before starting you need to learn some basic things
12=1
22=4
32=9
42=16
52=25
62=36
72=49
82=64
92=81
102=1000
If you don’t know these don’t worry read this 4-5 times you can learn it easily
Lets move towards trick
Related topics:- Find square of any number square root table 1-100 square table 1-100 Find cube root of any number Find cube of any number |
12=1 22=4 32=9 42=16 52=25 62=36 72=49 82=64 92=81 102=1000 |
Find √3136
Step 1:- √3136
Consider 1st two numbers here 31
Now take the number which square is lesser than 31
So here 62=36 greater than 31
So we find our 1st number 5
Step 2:-
Check last number (√3136)
Here last number is 6
Again check table of squares which end came 6
Here 42=16,62 =36
So we got here 4 and 6
Step 3:-
Now 1st number (5) is multiplied by next number (5+1=6)
So 5×6=30
1st two numbers(31) are greater than 30 so between 4 or 6 big number 6 came
(*****If it is lesser than the number smaller number came )
So (√3136) =56
Taking another example it will be clear to you
12=1 22=4 32=9 42=16 52=25 62=36 72=49 82=64 92=81 102=1000 |
Find √1936
Step 1:- √1936
Consider 1st two numbers here 19
Now take the number which square is lesser than 19
So here 52=25 greater than 16
So we find our 1st number 4
Step 2:-
Check last number (√1936)
Here last number is 6
Again check table of squares which end came 6
Here 42=16,62 =36
So we got here 4 and 6
Step 3:-
Now 1st number (4) is multiplied by next number (4+1=5)
So 4×5=20
1st two numbers(19) are less than 20 so between 4 or 6 small number 4 came
So (√1936) =44
Related topic need to learn :-
Find square root of a non-perfect square number