Hi guys. Need a bit of help!

I am trying to construct a True/False formula, where it is True when the value of the cell lies between 0.9 and 1.1, or 1.9 and 2.1, or 2.9 and 3.1.

Am banging my head against the wall in frustration as I'm getting nowhere!

Anyone out there able to save my headache, not to mention my wall??!!