Dividing a network into 3 subnets

If I wanted to divide a network into 3 subnets would I have to borrow 2 bits from the network address and add it to the subnet? Say if my network address was 200.150.128.0/23. What would my other 3 subnet addresses be???. I know that the new address for the first subnet would be - 200.150.128.0/25 if I borrow 2 bits. I am struggling a bit when it comes to subnetting and networking.