Jo Jo are you leaving the last 1/4" seam allowance "ON" ready for the next border.....

Is anyone else awake this late??? :shock:

Okay... I admit to being math challenged but I am stumped and need to have another set of eyes see this to see if I really am as batty as I'm beginning to think I am.

I need to put the floaters on so that I can put my lattice on and be finished with this month. But, I always like to add up the math to make sure it adds up before I cut and I'm losing my mind. I know that the pattern is correct but I'm stumped at why I can't figure it out.

Here goes.

Month one block unfinished size is at 21-3/4 inches by 21-3/4 inches. CHECK

Month two has an inner and outer border and the slat border. After adding all of these to the center, the unfinished block should measure 24-1/2 inches.

Here's my dilemma:

The inner border says to cut the border 3/4 inches
The slat border is cut to 1-3/8 inches wide
The outer border is 3/4 inches wide

Now for the math part:

If you add 21-1/4 (removing the 1/4 inch for the seam) plus the above borders and subtract the seam allowances, I do not come up with what I should end up with which is the 24-1/2 inches unfinished size. What am I misunderstanding?

I even cut a very small sample of the two borders and the slat and the sample cut at the above measurements didn't make the make my block 24-1/2.

Now I know that lots of people have already finished this month and that the instructions are correct -- so p.l.e.a.s.e. help a sister out and show me the error of my ways.