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Risolvi:

 

|−2,2‾−3,3‾|−1=<1>

ATTENZIONE!

Trasforma i numeri periodici:

 

2,2‾=<2>             3,3‾=<3>

 

Hanno entrambi il segno meno, quindi: −2,2‾−3,3‾=<4>

 

Adesso rendi positivo e inverti, quindi: |−2,2‾−3,3‾|−1=<5>

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