Using the identity ( a – b ) 2 = a2 – 2ab + b2 , Find the square of 38.
The number of zeroes at the end of square of 55 ?
No zeroes
1
2
3
Which of the following number cannot be a perfect square by look at the unit of the number?
2025
2058
1296
62500
With how many zeroes will the square of 900 end ?
4
The square of 100 is
100
1000
10000
100000
Write unit digit of the square of 21287.
6
7
8
9
Find the square of .25
625
6.25
.0625
62.5
Which of the following is not a perfect square.
225
121
400
130
Using the identity ( a + b )2 = a2 + 2ab + b2, Find the square of 101.
10101
10111
10201
10211
Between the squares of numbers n and n + 1, there are exactly _______ non – perfect square numbers.
n
n2
2n
n3