Find the square of following number using diagonal method: $88$.

Given: A number $88$.

To do: To find the square of the number $88$ using the diagonal method.

Solution:

 From the above table:

Unit's digit is $\underline{4}$.

Ten's digit$=4+6+4=1\underline{4}$    [$1$ carry]

Hundred's digit$=6+4+6=16+1( carry)=1\underline{7}$

Thousand's digit$=6+1(carry)=\underline{7}$

Thus, the square of the number $88$ is $7744$.

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Updated on: 10-Oct-2022

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