[Beerinkol]

Is this correct? Second part answer does not look correct

எருமையன்னா (எ = 7 , ௫ = 5 - ஏழும் அஞ்சும் )கயி தைஎன்னா (௧ = 1 , யி = முக்கால் )

ref: http://www.gnanam.info/tamil/docs/Num_and_symbols.pdf
and
Tamil Numbers

In the colloquial expression, if you use ௧, and யி, then you cannot use தை, because it will become ௧யிதை but it sounds odd . The proper colloquial expression is கயிதே. So you have to use க+ழு+தை= கழுதை, (ழு, but not யி)