Decimal flash cards include notched corners for quick organization. Large, easy to handle 6-1/4″ x 3-3/4″ cards. Bold, heavy type to use with large groups. Durable, thick card stock (14 pt). Self-checking. Great for small groups, pairs, and whole class participation. Easy-to-read, double-sided, classroom-sized cards are printed on high quality stock. Cards feature 3 levels of difficulty expressed in both numerals and words.