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November 1, 2025
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5 set 2007 ano - I was taught how to do easy solving problems

Descrição:

At school, my teacher showed me a shortcut on how to solve math problems such as using my fingers to count. The stage is called CONCRETE OPERATIONAL.

Adicionado na linha do tempo:

Data:

5 set 2007 ano
Agora
~ 18 years ago

Imagens: