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Standards-based assessment and Instruction

Spanish Translation

Mil caracoles

Task

Emily y Kayla coleccionan caracoles. Emily tiene 400 + 90 + 2 caracoles. Kayla tiene cuatrocientos noventa y cuatro caracoles. Emily y Kayla ponen todos los caracoles en una bandeja grande y empiezan a contarlos. Emily quiere tener un total de mil caracoles. Después de contar por un rato, Kayla cree que cada una va a tener que encontrar siete caracoles más.  ¿Tiene razón Kayla? Demuestra todo tu razonamiento matemático.

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