Mathematics Digital Stamp Roller Addition/Subtraction Fill in Blanks Sum

This awesome digital stamp roller is an absolute must-have for home, school, and fun learning centers. Print less than 100 math equations in seconds. Adjustable numbers, gentle scrolling. A fun and meaningful gift for your child or your friend's child.

Math skill development: rotate and adjust the column type, can adjust 10 different queue methods. Complete all addition and subtraction numbers from 1-100 on the algorithm. Develop children's logical calculation ability. Complete missing sums.
Teaching stamp reusable: small and exquisite, easy to carry in a clear carry case, can add ink for reuse. The imprint is clear, and it dries and does not fade after printing. The product includes a digital teaching stamp and 1 bottle of ink.

Quick and easy to prepare math problems for your kids at home. You can print quickly by just scrolling through the page and the math problems will print accordingly, and it dries quickly.
Learning and educational gift: keep the kids busy and get yourself a moment of quiet when they need it. So, it's a great gift for our kids and even for parents.

Features:
- Endless options for math equations
- Quick dry ink
- Does not fade
- Refillable ink bottle included
- Fill in the blanks maths sums
- Addition and subtraction
- made from good quality durable material
- 4.5 x6cm
- storage case included to securely keep stamp roller and ink refill bottle

What's in the box
1 x Digital roller stamp
1 x Bottle of ink