Product description Practical oral arithmetic cards designed for repeated practice and quick review. Each card is printed on coated paper for smooth writing and easy erasing. The set comes with an erasable pen so students can write answers directly on the cards, correct mistakes, and reuse the cards many times. Key benefits Builds speed and accuracy in mental arithmetic through short, focused exercises. Reusable coated paper surface works with the included erasable pen for repeated practice and minimal waste. Colorful design helps organize exercises and keeps learners engaged without distracting from the tasks. Portable and lightweight for classroom use, tutoring sessions, or practice on the go. Main features Material: coated paper for a smooth, durable write and erase surface. Color: colorful design to aid visual grouping and motivation. Package contents: 1 Mathematical Training Oral Arithmetic Cards, 1 erasable pen. Easy to correct: write, erase, and repeat for ongoing practice and review. Low maintenance: wipe clean or erase with the pen eraser as needed. Typical use scenarios Classroom drills: Use for timed oral arithmetic rounds to reinforce classroom lessons and assess fluency. Home practice: Parents and learners can run short daily sessions to maintain and improve calculation speed. Tutoring and small group work: Ideal for one on one tutoring or small study groups where instant feedback and repetition are needed. Performance and care The coated paper surface is optimized for erasable pen use, allowing clear writing and clean erasure without damaging the cards. Store flat to prevent bending. Avoid prolonged exposure to direct sunlight to preserve color quality. Notice Please allow slight measurement deviations due to manual measurement. Due to different monitor and light effects, the actual color of the item might be slightly different from the color shown in the pictures. Package list 1 Mathematical Training Oral Arithmetic Cards 1 Erasable Pen