Problems using the raster calculator

Discussion created by g09k0918 on Feb 20, 2014
Latest reply on Feb 23, 2014 by g09k0918
The raster calculator (ArcMap10.1) will not add up the values of my raster layers. They have all been reclassified to values between 1 and 4, with no data=1, but when I add them together I don't get numbers between 2 and 8. I get numbers between -2147483647 and 2147483647.
Please help! I have tried everything...