replacing some ceramic floor tiles - how easy?

[quatro]

I have bought a house with ceramic floor tiles in the kitchen and I have spares left in the garage by previous owners! I want to change the layout in the kitchen and would like to lift some cut tiles [round the edges of the present units] and put down new whole ones. But how easy is this to do?
They have been laid on a wooden floor.

 

[skybluescooby]

Fairly easy i guess,
Smack em in the centre with a hammer, chiasel back carefully till you have removed the tile, chip away the adhesive and grout, dust down and relay new tiles.

 

[Moz]

as scooby doo said

break em an remove you can get a floor chisel that is a BOSS tool ..lol

fits on a broom handle ...called "The Mutt" ....saves them knees ..lol