Number of Digits in a Square Number

Q.

A number ending in $9$ will have the units place of its square as:

1. $3$

2. $9$

3. $1$

4. $6$

Q. What will be the unit digit of the square of 297?

1. 3
2. 6
3. 9
4. 7

Q.

How many digits will there be in the square root of 729?

1. 2

2. 3

3. 1

4. 4

Q.

How many digits will there be in the square root of 729?

1. 3

2. 4

3. 2

4. 1

Q. The smallest number by which 252 must be multiplied so that the resultant is a perfect square is:

1. 2
2. 3
3. 5
4. 7

Q.

The square root of a perfect square of $n$ digits will have $\frac{n+1}{2}$ digits, if $n$ is odd. State whether the statement is true (T) or false (F).

1. True
2. False

Q. The square of 130000 ends with ______ number of zeroes.

1. 8

Q. Match the following with the units digits in their squares.

1. 4
2. 6
3. 9
4. 1

Q. How many zeros will the square of $7000000$ have?

1. $6$
2. $8$
3. $10$
4. $12$

Q.

How many digits are there in the square root of 758641?

1. 2

2. 4

3. 3

4. 5

Q. The square of 1234 will have the digit _____ in its unit place.

1. 8
2. 4
3. 2
4. 6

Q. The square of 130000 ends with ______ number of zeroes.

1. 8

Q. The square of _____ will have 1 at its units place.

1. 729
2. 867
3. 343
4. 346