Download - Aproximar a la decena 2 cifras
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Cálculo mental
2 cifras
Aproximación a las decenas
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4Está entre el 40 y el 50
40 41 43 44 45 46 47 48 49 50
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2Acaba en 2
Se aproxima a 40
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Si acaba en 0, 1, 2, 3, 4 o 5se aproxima a la decena más baja.
42 acaba en 2, se aproxima a 40
Si acaba en 6, 7, 8 o 9
se aproxima a la decena más alta
48 acaba en 8, se aproxima a 50
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