how many keys does the grand đàn piano have?

mine has 85

it depends.some have 52,some have 85.they vairy because the country they are made in is different,the makers are different,the model for the purpose is different.i dont think its a one word answer,sorry. :P

I was under the impression that most pianos had 88 keys, but i'm not an expert! LOL!

Well, I've been taking đàn piano lessens for 8 years, I'm 11, so, yeah, but I've learned that with the different types of pianos; baby grand, buổi hòa nhạc grand, all those, the number of keys vary. It would depend on what kind of đàn piano bạn were asking about! Hope it helps!

it has 88!! all keys including black

i think 81

A full length grand đàn piano generally has 88 keys, all included.

i think it's 81

There are 88 keys on a grand piano.