Help D.C. with number sentences and ten frames, then learn about groups of up to 20. Join Mrs. Gray for a Mystery Math Mistake with D.C. He needs help figuring out his number sentences to match ten ...
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Rodd has a bad cold and is at home bored, so he looks out of his window and counts the cars on a bridge. Realising that he needs to count more than 10, he has the idea of making an unusual abacus that ...
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