WE CAN COUNT BY THREES 3! #MATH IS FUN IN FIRST GRADE! First Grade Math Bulletin Board Letters, First Grade Math Classroom Décor, First Grade Math Sayings, First Grade Math, Back To School, End of Year The words read, WE CAN COUNT BY THREES 3! #MATH IS FUN IN FIRST GRADE! Size: 8.5 by 11 inch (letter paper) To print 2 or more letters on one page, please choose print multiple pages, option in your printer. Great for a quick bulletin board, door display and more.