Originally posted by Alvin:[..]
I found this? https://en.gvb.nl/reizen/producten-en-tarieven/ov-tarieven-2017
GVB 1 day / 24 hours € 7.50
GVB child 1 day / 24 hours € 2.50
GVB 2 days / 48 hours € 12.50
GVB 3 days / 72 hours € 17.00
it's cheaper than posted above, so this is some yones limited or not for whole Amsterdam? (airport, Amstelveen [where I have Air BNB])
It won't allow you to travel to Schiphol, for instance (as you can only reach that by train, car, or special airport shuttles I guess).
For Amstelveen it should be alright.