Magazine Year: 2020 / Number: 14
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Our grandparents' problems (12)
Angelo Silva, Helder Pinto
Multiplication algorithm
Alda Carvalho, Carlos Pereira, Ricardo Cunha Teixeira
The symmetries of the Azores pavements in a deck of cards
Alda Carvalho, Carlos Pereira dos Santos, Jorge Nuno Silva, Ricardo Cunha Teixeira, Susana Cabral