Properties of Square Numbers

Find the square of $40$, representing $40$ a number in the form of $5a$, where $a$ is any natural number.

Identify the unit digit of the square of $559$.

Perfect square numbers ending with $\text{'}6\text{'}$ will have their square roots ending in $4$ or $6$.

The number with its square number ending with $6$ is

Perfect square numbers ending with $\text{'}1\text{'}$ will have their square roots ending in $1$ or $9$.

Find the number of zeroes in ${\left(1000\right)}^2$

What is the value of ${101}^2-{100}^2$?

What will be the number of zeros in the square of $400$?

Using properties of squares, find the values of the following.

${150}^2-{149}^2$

Using properties of squares, find the values of the following.

${121}^2-{120}^2$

Using properties of squares, find the values of the following.

${100}^2-{99}^2$

Using properties of squares, find the values of the following.

${45}^2-{44}^2$

Which of the following is a perfect square?

$38, 96, 21, 245, 900$

Find the greatest number of two digits which is a perfect square.

Evaluate :

${\left(2000\right)}^2-(1999{)}^2$

Evaluate :

${\left(1001\right)}^2-(1000{)}^2$

Evaluate :

${\left(732\right)}^2-(731{)}^2$

Evaluate :

${\left(100\right)}^2-(99{)}^2$

Find the squares of the following.

$61$

Find the squares of the following.

$35$