Description
Children learn the dynamics of addition and subtraction through visual aid. These double-value flash cards in vertical format consist of 81 cards printed two sides, one side printed with an addition problem and the other side with a directly related subtraction problem (e.g. 3+1=4 on one side, 4-1=3 on the reverse). For every addition fact, there are three other facts that belong to the same family. Suggested activities included.
Educational Aim
To familiarize children with the basic facts of addition and subtraction. Quick recall of math basics, "mental math". Application and interpretation of mathematical language for important elementary concepts. Auditory/visual association.
Product Features
Best Seller! 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 (the number on the lower right of each card give the correct answer for the opposite side). Great for small groups, pairs, and whole class participation.
Contents
81 vertical format flash cards plus suggested activities and complementary equations key.
Grade Level: K - 3
