Learning Advantage Double Value Addition & Subtraction Vertical Flash Cards

Description

Teach your students the relationship of +/- with these addition and subtraction flash cards. Each box contains 90 classroom-size flash cards and each card has an addition problem and subtraction problem (Example3+1=4 on one side, 4-1=3 on the reverse). Details:6.25″ x 3.25″Great for teaching the relationship of +/-90 classroom-size flash cardsDouble valueVertical format