The sum of a die's front and back is always sevenPremium ChapterChapter 78 - The sum of a die's front and back is always sevenUnlock to continue reading30 coinsSign in to UnlockUnlocking grants permanent access to this chapterPreviousPrevCh. 78 / 184NextNextCOMMENTSTopRecentJoin the conversation! Sign in to leave a comment.Sign In to CommentLoading comments...