Reply To: Graphic to show the Associative Property of Multiplication
Good day, Tung.
Since the dark blue lines indicate where the content for light blue lines is coming from, I believe you should include all of the lines (You could probably use braille omission dashes for the light blue lines that indicate blanks to be filled and tactile lines for the dark blue lines). Similarly, I believe you should follow print as closely as is practical for alignment in order to help make clear the relationship between omission dashes on one line and omission dashes on the next line.
Thank you sincerely for your question. Please do post again if you have follow-up concerns or queries.
–Kyle