Question

Find the square of 813 using diagonal method​

Answer 1

Answer:

660,969

Step-by-step explanation:

This is answer Hope it helps you

Answer 2

$\huge\bf\underline\red{❦︎Answer❦︎}$

$= 813²$

$= 813 × 813 = 660969$

Step-by-step explanation:

Hope it helps you