In a world of tens, children reign over additions and subtractions with one numeral, counting two by two, shapes, pinpointing in a household and completing sequences. Premium: words and sentences to read and even crosswords of names of numbers. A ...
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In a world of tens, children reign over additions and subtractions with one numeral, counting two by two, shapes, pinpointing in a household and completing sequences. Premium: words and sentences to read and even crosswords of names of numbers. Age: 5 to 7
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