I have some cute snowflake fabric that I am cutting the snowflakes out of and they come out as 10" squares (maybe 10.5, if I work it right.) So if I have 10.5 inch squares they would finish as 10 inch squares, right? Or if I cut them 10" they would finish as 9.5". So what size strips do I cut to make 9 patches for inbetween them that finish either 9.5' or 10" 9 patch blocks? I am terrible at figuring out the math and I really don't want to ruin this expensive fabric I bought so if anyone could help me I would really appreciate it. Thank you.