Im reading the two paragraphs that my book covers and it isnt making any sense at all!

I need to evaluate the following expression:

100110 AND (011111 XOR 101011)

The book says that 0=f and 1=t.

Can someone please explain this?! I tried following the only example and it doesn't show steps or an explaination.

It says:

Find the bitwise OR, AND, and XOR of the bit strings 01 1011 0110 and

11 0001 1101.

OR = 11 1011 1111

AND = 01 0001 0100

XOR = 10 1010 1011