☆ Brand New, Unused ☆ Bundle Discount Available ☆ Instant Purchase OK! Calculation Cards, Arithmetic Box, Elementary School 1st Grade, Arithmetic, Addition, Subtraction, Brand New, Unused These cards are perfect for solidifying the basics of addition and subtraction, ideal for memorization and repetitive learning. Recommended for home study, preparation, and review. Shipped via Mercari Mail (Yu-Packet Post Mini) for secure and safe anonymous delivery with compensation and tracking. Arithmetic Set, Single Item, Calculation Cards, First Grade, Home Study, Addition, Subtraction, Memorization, Arithmetic Set