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Προσθέτοντας 10 ή 100
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Ο Sal προσθέτει 1, 10, ή 100 σε έναν αριθμό.
By G. Karalis
Original video:
Adding ten or one hundred Addition and subtraction within 100 Early Math Khan Academy
By G. Karalis
Original video:
Adding ten or one hundred Addition and subtraction within 100 Early Math Khan Academy
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