Question

22degrees33' - 10degrees54'

Answer 1

adding/subtracting of degrees works like add/subtract in units of time

we have to "borrow" a degree

22degrees33' - 10degrees54'
= 21° 93' - 10° 54'
= 11° 39'

look at your calculator
If you have a key labeled D°M'S
then you can do the operation directly.
follow these keystrokes
22
D°M'S
33
-
10
D°M'S
54
=

and you should get 11°39'00.00
(the last part would be seconds, we did not have any)