Product Information
- [Rotary Design]:Rotate to adjust 10 different count methods.10 different queue modes can be adjusted.Satisfy all addition and subtraction within numbers 1-100.Develop children's logical calculation ability.
- [Easy to Carry]:Small and exquisite,easy to carry.Can be placed in a stationery bag or pocket at any time.The roller-type digital teaching chapter frees parents' hands,just roll and print different addition and subtraction formulas on the paper.
- [Reusable]:Small and exquisite,easy to carry,add ink for repeated use.
- [Efficient]:Efficient and fast give practice questions,no smudge,no fading.You can quickly prepare math problems for your child at home.You can quickly complete the quiz by simply scrolling the math problems.
- [Meaningful Gift]:Addition and Subtraction,Interesting Drawing,Number 1-100.Give your children or your friend kids a funny and meaningful gift!
