Sumar y restar 9 y 99

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Age: 8-15
Level: Tercero de Primaria
Language: Spanish (es)
ID: 237551
28/05/2020
Country code: ES
Country: Spain
School subject: Matemáticas (1061956)
Main content: Cálculo mental (2013175)

Restar y sumar mentalmente a un número 9 y 99

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Sumar y restar 9 y 99

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