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Compartir y dividir / Richard Leffingwell.

by Leffingwell, Richard.

Series: Heinemann lee y aprende. Las matemáticas básicasMaterial type: Text Text; Literary form: Not fiction Publication details: Chicago, E.U.A. : Heinemann Library, 2006Availability: Items available for loan: 1 . Collection(s): Infantil Call number: QA115 L4.36.

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Duplicar y multiplicar / Richard Leffingwell.

by Leffingwell, Richard.

Series: Heinemann lee y aprende. Las matemáticas básicasMaterial type: Text Text; Literary form: Not fiction Publication details: Chicago, E.U.A. : Heinemann Library, 2006Availability: Items available for loan: 1 . Collection(s): Infantil Call number: QA115 L4.3.

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Restar y quitar / Richard Leffingwell.

by Leffingwell, Richard.

Series: Heinemann lee y aprende. Las matemáticas básicasMaterial type: Text Text; Literary form: Not fiction Publication details: Chicago, E.U.A. : Heinemann Library, 2006Availability: Items available for loan: 1 . Collection(s): Infantil Call number: QA115 L4.73.

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Sumar y contar hacia adelante / Richard Leffingwell.

by Leffingwell, Richard.

Series: Heinemann lee y aprende. Las matemáticas básicasMaterial type: Text Text; Literary form: Not fiction Publication details: Chicago, E.U.A. : Heinemann Library, 2006Availability: Items available for loan: 1 . Collection(s): Infantil Call number: QA115 L4.7.

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