Do you understand that /27 means that the mask is 255.255.255.224 and that the bits are 11111111 11111111 11111111 111000000? If the last 5 bits have a value of 31 (16+8+4+2+1), then a 27 bit mask allows for 8 networks having IP address ranges of 0-31, 32-63, 64-95, 96-127, etc. The goal is to make sure that each router is in a different netwok. You don't calculate it; you need to understand how it works.
Yes I understand that the snm would be 224 having a /27 as you use 27 bits and the 5 left are for hosts.I also understood the values you mentioned. Why do you say a 27 bit mask allows for 8 networks with those ranges, how did you figure it out? Sorry for being a pain but it is my first time doing subnetting.
Thanks for the help so far.