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ssahnaz

6 karma · joined February 20, 2012

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How to extract cube roots mentally in less than 5 seconds

mathema-tricks.blogspot.com·2 pts·ssahnaz·
0

How to multiply two 3-digit numbers between 100 and 109 easily and quickly

mathema-tricks.blogspot.com·1 pts·ssahnaz·
0

How to Square a 2-digit number beginning with 5 in the blink of eyes

mathema-tricks.blogspot.com·1 pts·ssahnaz·
2

How to do arithmetical calculations using only the human brain

mathema-tricks.blogspot.com·2 pts·ssahnaz·
1

How to prove 0.999… = 1.

4 pts·ssahnaz·
3

How to Square numbers made up of 1

1 pts·ssahnaz·
1