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Grimm's Biggest Ever Sale - 20% off ALL products.
Grimm's Biggest Ever Sale - 20% off ALL products.

SumBlox are an innovative way to develop math skills. Learning to count, add, subtract, multiply and much more is as simple as stacking building blocks. SumBlox are solid wood stacking number blocks designed to improve numeracy and make learning more accessible, more fun, and more exciting.

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    SumBlox Minis Starter Set 38 Blocks & 36 Activity Cards

    $79.90 - $79.90
    $79.90
    $79.90
    $79.90 - $79.90
    $79.90

    Introducing the New SumBlox Minis. Our Original SumBlox concept is now available in miniature. 50% smaller but 40% more blocks! Learning through pl...

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    $79.90 - $79.90
    $79.90
    $79.90
    $79.90 - $79.90
    $79.90
    Sold out
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