NBX Arithmetic Writing Board Reusable Early Education Tool Toddlers Oral Calculation Question Plate Fun Teaching Equipment Create Various Math Operations with White Board and 2 Erasable Pen for 1-200 Addition & Subtraction

▶ Easy to Use: Rotate the gear to change the question in a second. The upper gear changes the number before the operator, and the lower gear changes the number after. Slide the panel below to switch operation symbols.

▶ Economical and Environmentally Friendly: This tool allows for a paperless defense, eliminating repetitive answers, saving paper and protecting forests. It's small and portable, perfect for engaging practice anytime, anywhere.

▶ Quality Material: The casing is hard enough to withstand falls, making it more drop-resistant and wear-resistant. The product list includes 1 arithmetic learning generator, 2 whiteboard pens, 1 erasable cloth, and 1 storage bag.

▶ Adjustable Difficulty: With a large amount of questions of variable difficulty levels to choose from. We have mixed addition and subtraction problems from 1-30/1-50/1-100/1-200 as well as mixed multiplication and division problems from 1-50/1-100.

▶ Ignite Children's Computation Passion: Includes addition, subtraction, multiplication, and division tests. Whether you're teaching in a classroom or at home, these tools can help stimulate their enthusiasm for learning!