Pinit TREND Subtraction 13-18 Skill Drill Flash Cards(0)No Reviews yet SKU: T-53104 $9.99 Quantity discounts available QuantityPrice Quantity -+ Add to Shopping Cart Details Further develop children's subtraction skills. This set covers facts 13 through 18. Great for test prep and review. Cards are self-checking, dur... Details Back DetailsFurther develop children's subtraction skills. This set covers facts 13 through 18. Great for test prep and review. Cards are self-checking, durable and feature rounded corners for quick sorting. 99 cards, grades 1-2. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review