Termino excluido – 01/0272021
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Adición y sustracción de fracciones heterogéneas – 01/02/2021
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Adición y sustracción de fracciones homogéneas – 01/02/2021
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Fracciones – Fracciones equivalentes – 29/01/2021
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Que numero sigue ….? 29/01/2021
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Uso de la S -29/01/2021
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Uso de la C – 29/0172021
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Operaciones combinadas – 27/01/2021
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Las preposiciones – 27/01/2021
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Sinónimos y antónimos – 25/01/2021
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