Mathigon (@mathigonorg) 's Twitter Profile
Mathigon

@mathigonorg

The Mathematical Playground – making learning more interactive and engaging than ever before, and FREE for everyone. Part of @amplify

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linkhttps://mathigon.org calendar_today12-04-2012 06:35:21

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Mathigon
@mathigonorg

5 months ago

Deck 6, the final deck of Addition and Subtraction by Heart 1, uses number bars to provide the most abstract representation of subtracting within 10. Try for yourself and learn more about the free fluency practice resource at fluency.amplify.com