how far is Bastion Deluxe Hotel Zaandam from Amsterdam centre eg 'dam Square etc?

Here you have a map:
http://www.easytobook.com/es/amsterdam-hoteles/bastion-hotel-zaandam-amsterdam/location/

You can zoom in and out using the arrrows; you can also choose the map, or the hybrid, where you can see the names of the streets as well as the satellite view.

Bastion Hotel Zaandam is at the Wibautstraat 278 in Zaandam.

Just around the corner from your hotel, you can catch a bus at the Morgensterstraat. Bus 91 (Connexxion) to Amsterdam Central.

It will take a max 30 minutes bus ride to the central train station of Amsterdam. From the train station, it's 10 min walk to the Dam square.