What will be the units digit of the squares of the followiing numbers?

$7,431$

What will be the unit digit of the square of the following number?

$18,324$

Observe the following pattern and write the vlaue of $1+3+5+7+9+11+...+27.$

$1+3=4=2^2$

$1+3+5=9=3^2$

$1+3+5+7=16=4^2$

$1+3+5+7+9=25=5^2$

Using a suitable patterm find the vlaue of:

$\frac{{4444}^2}{1234321}$

Using a suitable pattern find the value of $\frac{{7777777}^2}{1234567654321}$

Observe the following pattern and find the value of ${10101010101}^2$

$$\begin{gathered} {11}^2=121 \\ {101}^2=10201 \\ {10101}^2=102030201 \\ {1010101}^2=1020304030201 \end{gathered}$$

Observe the following pattern and find the value of: ${45}^2-{44}^2$

$$\begin{gathered} 2^2-1^2=2+1 \\ {3}^2-2^2=3+2 \\ {4}^2-3^2=4+3 \\ {5}^2-4^2=5+4 \end{gathered}$$

Observe the following pattern and find the value of: ${132}^2-{131}^2$

$$\begin{gathered} 2^2-1^2=2+1 \\ {3}^2-2^2=3+2 \\ {4}^2-3^2=4+3 \\ {5}^2-4^2=5+4 \end{gathered}$$

Write a pythagorean triplet whose members are formed by the given natural number.

$6$