Addition and subtraction ruler
Addition and subtraction ruler
Addition and subtraction ruler
Addition and subtraction ruler
Addition and subtraction ruler
Addition and subtraction ruler
Addition and subtraction ruler

Addition and subtraction ruler

Regular price $29.99 Sale price $18.99

šŸ”„Ā Free shipping on orderĀ over $39

MAIN FEATURES

  • EASY TO USEĀ 
    The sliding ruler selects the number from the box, and the circle gets the sum of the numbers added up and down. The moving board can calculate the addition and subtraction of mathematics.Ā A good helper for children's arithmetic enlightenment
  • HIGH-QUALITY MATERIAL
    High-quality chemicalĀ freeĀ wood, each piece of wood is carefully selected, scientific chamfered fine grinding, smooth surface without burrs, children will not hurt the finger during the learning process.
  • DEVELOPING INTEREST IN LEARNING
    This early education ruler can avoid the baby feel dull and boring from learning,Ā develop children's intelligence.
  • SUITABLE FOR FAMILIES AND SCHOOLS
    Parents can use this to interact with their children in interesting education. In schools, teachers can be used as teaching tools.

    USING METHODS

    PACKAGE INCLUDE:

    1*Digital Decomposition Ruler

    PRODUCT SIZE:

    GUARANTEE:

    • We promise your item will be shipped within 48 hours after payment to meet your urgent needs.
    • We are convinced that we have created some of the most innovative products in the world and we want to ensure that we support 30 days without risk.
    • 100% Money Back Guarantee.You can return items for a refund or exchange within 180 days.
    • If you do not have a positive experience for any reason, we will do our best to ensure that you are 100% satisfied with the purchase.
    • Buying items online can be a daunting task, so we want you to realize that there is absolutely no risk in purchasing items and trials. If you don't like it, feel free to apply a refund.

    Payment:

    PayPal is welcomed here.
    If you don't have a PayPal account, we accept all credit cards: just select 'PayPal' and click the 'Pay with Debit or CreditCard' button.

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