Black and White Quilt Fabrics

I washed all the fabrics last night. 11 half yards of black and white. I need 128 five inch squares to make Kim's quilt.

So if I cut 12 squares out of each of the 11 fabrics I should have enough to random assemble the squares.  I don't think Kim will get suspicous if she sees me cutting the fabrics. Although I won't do any assembling or quilting while she is around.