CH – 5 SQUARES AND
SQUARE ROOT
1.Squares of even numbers are always even
2.Squares of odd number are always odd
3.Squares of numbers whether it is positive or
negative it is always positive
4.The number ending with 2, 3, 7 and 8 is never
a perfect square
5.The number ending with odd number of zeros
it never a perfect square
6.If a number has n than its square has 2n-1 or
2n number of digits
7.There a 2n non-perfect numbers between the
squares of n and n+1
8.The sum of 1st in odd natural number is n
square
9.The difference between 2 natural number, is
equal to their sum
SQUARE ROOT
1.Squares of even numbers are always even
2.Squares of odd number are always odd
3.Squares of numbers whether it is positive or
negative it is always positive
4.The number ending with 2, 3, 7 and 8 is never
a perfect square
5.The number ending with odd number of zeros
it never a perfect square
6.If a number has n than its square has 2n-1 or
2n number of digits
7.There a 2n non-perfect numbers between the
squares of n and n+1
8.The sum of 1st in odd natural number is n
square
9.The difference between 2 natural number, is
equal to their sum
