A Perfect Square Always Ends in 0,1,4,5,6,9 as Last Digit

Q. Square of an even number is always even.

1. True
2. False

Q. If a number ends with '5' zeros, its square ends with _____ zeros.

1. 55
2. 10
3. 3
4. 45

Q.

Question 15

Write the correct answer from the given four options.

The next two numbers in the number pattern 1, 4, 9, 16, 25, .... are

a) 35, 48
b) 36, 49
c) 36, 48
d) 35, 49

Q.

How to find perfect square?

Q. Square numbers can be obtained by multiplying the number by itself.

1. True
2. False

Q. Which of the following is/are perfect square(s) ?

1. 125
2. 169
3. 81
4. 900

Q. Find the square root of $3136$ by division method.

1. 56
   
2. 66
3. 46
4. 36

Q. Find square root of 125 by long division method?

Q. Find the largest number of 5 digits, which is perfect square

1. 99999
2. 99764
3. 99976
4. 99856

Q. How many natural numbers lie between the squares of 14 and 15?

1. 38
2. 28
3. 30
4. 20

Q.

How many zeroes will ${19000}^2$ have at the end?

1. 4

2. 5

3. 6

4. 3

Q. Which of the following can be a square number?

1. 250
2. 2500
3. 25000
4. 2500000

Q.

Without doing calculation, find the numbers which are surely not perfect squares.
(i) $153$
(ii) $257$
(iii) $408$
(iv) $441$

Q. Square of an even number is always even.

1. True
2. False

Q. Square numbers can be obtained by multiplying the number by itself.

1. True
2. False

Q. $23453$ is not a perfect square. Give reason.

1. Because last two digits are $53$
   
2. Because last digit is not divisible by $3$
3. Data insufficient
   
4. Because number ends with $3$
   

Q. Which of the following number is not a perfect square?

1. $2\frac{1}{2}$
2. $1\frac{1}{2}$
3. $4\frac{1}{4}$
4. $None$

Q. Square numbers can only have ____________ at the end.

1. Odd number of zeros
2. Even number of zeros
3. Both (A) and (B)
4. None of these

Q. $(2975{)}^2$ = ?

1. 8850620
2. 8850625
3. 8850624
4. 8850623

Q. Give reason to show that none of the numbers given below is a perfect square:
$8457$

Q. How many zeroes will ${16800}^2$ have at the end?

1. 3
2. 4
3. 5
4. 6

Q. $89722$ is not a perfect square. Give reason.

1. Because last two digits are $22$
   
2. Number ends with $2$
   
3. Number starts with $89$
4. Data insufficient
   

Q.

How many zeroes will ${19000}^2$ have at the end?

1. 3

2. 5

3. 6

4. 4

Q.

Which of the following will have 1 in the units place?

1. ${123}^2$

2. ${161}^2$

3. ${82}^2$

4. ${77}^2$

Q. If a four-digit perfect square number is such that the number formed by the first two digits and the number formed by the last two digits are also perfect squares, identify the four digit number.

1. $6416$
2. $1664$
3. $1681$
4. $3616$

Q. Square of an even number is always even.

1. False
2. True

Q. $(19000{)}^2$ will contain how many zeroes at the end?

1. 4
2. 6
3. 5
4. 3

Q. 222222 is not a perfect square. Give reason.

1. Because last two digits are $22$
   
2. Numbers ends with $2$
   
3. Because the sum of digits is $12$
4. Data insufficient
   

Q. $(19000{)}^2$ will contain zeroes at the end.

1. 3
2. 4
3. 5
4. 6

Q. If ${16}^2=256,$ then which of the following are perfect squares ?

1. $\sqrt{0.00256}$
2. $\sqrt{0.0256}$
3. $\sqrt{3.69-1.13}$
4. $\sqrt{12.8÷5}$