Vertical Subtraction Flash Cards
Large classroom-sized "All Facts" cards with subtraction problem on one side and problem with answer on the reverse.
Quick recall of math basics, "mental math". Application and interpretation of mathematical language for important elementary concepts. Auditory/visual association.
Notched corners for quick organization. Large, easy to handle 6-1/4" x 3-1/4" 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.