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How to find the square of a number easily rather than using calculator?
Betty Ann Memorize a list of perfect squares.

Use a table (found in old math books).

Time consuming--there's an algorithm

Logs

Slide rule

On 3/14/15, Vickram wrote: > How to find the square of a number easily rather than using > calculator?
Mar 14, 2015
For what purpose? On 3/14/15, Vickram wrote: > How to find the square of a number easily rather than using > calculator?

And just why would you want to?

Does "easily" mean "in your head"?

It's not difficult to square any two-digit number in your head.

(10x + y) ^ 2 = 100x^2 + 20xy + y^2

So, for e...See More
Mar 15, 2015
Huh? On 3/14/15, Vickram wrote: > How to find the square of a number easily rather than using > calculator?

Multiply the number by itself. Multiplying 2 numbers IS easy.
Mar 16, 2015
Ilona prime factors :) for example: 144 2 72 2 36 2 18 2 9 3 3 3 1

144 = (2*2*3)^2 = 12^2
Apr 17, 2015


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