Question

is there any shortcut method to caltulate perfect squares?

Answer 1

I think you should just go ahead and memorize the squares upto at least 25. For bigger numbers, u can use the division method

Answer 2

https://www.google.co.in/url?sa=t&source=web&rct=j&url=%23&ved=0ahUKEwiTgPWY9ofaAhVLRY8KHclUDi8Qxa8BCCQwAA&usg=AOvVaw0VTJzWxrN8ZFOD4xbU2nov