Normalizing text on a floor plan

Hello,

I am working with architectural floor plans in AutoCAD 2013 trying to get all of the room name / number annotations uniform. The drawing is a compilation of a many different drawings created by different architects at different times, so the room numbers are not the same size.

I have all of the room names on their own layer and all of the room numbers on their own layer. Each name / number is a block. Is there a way for me to easily get all of the text the same size? So far the only way I have figured out to do this is using the "scale" function on each individual text block, this is not ideal as there are thousands of rooms...

I'm sure someone more proficient with AutoCAD would be able to do this easily. Please keep in mind I am relatively inexperienced with AutoCAD so keep your input "dumbed down" please. Any ideas are appreciated.

Thanks,

Matt

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