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Mathematics, 05.08.2019 00:00 BigDaddy1220

Nadia has 20 more postcards than pete. after nadia gives pete some postcards, pete has 2 more postcards than nadia. how many post cards does nadia give to pete?

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Nadia has 20 more postcards than pete. after nadia gives pete some postcards, pete has 2 more postca...
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