Well, there is an easier way (20" x 2 1/2"). Take (20" x 2 1/2") of red fabric, (20" x 2 1/2") of blue fabric, (20" x 2 1/2")of green fabric, (20" x 2 1/2") yellow fabric, (20" x 2 1/2"), pink fabric (20" x 2 1/2")" and then sew side by side and you will end of with a block and then cut the strips of by 2 1/2" and you will end up with 8 strips with all the colors in this bunch and then next another bunch (rather than sewing them all 2 1/2" one by one). Just a suggestion.