Question

this is a trick to do square quickley
only 41 to 59

suppos any number between 41 to 59

such as number is 43
thick 43 is greater or smaller than 50
and how many different between
43 and 50

different is 7
add 7 in 25 then we have 32
and square of 7 is 49 and write 32 and 49 at sequence then we have. ( 3249 ) this is the square of 43



this type you can find square in 2 or 3 sec in your mind
try it......
thank you


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Answer 1

Good trick, thanks for the explanation

Answer 2

Answer: Good one .It will help a lot to find a answer to a question involving this