A complete document about works with Soroban abacus.
Aprende a hacer cálculos con un ábaco japonés SorobanDescripción completa
Training exercises on sorobanFull description
Descripción con ejercicios adicionales de las operaciones con el ábaco japonés (soroban)
Soroban, an uncommon word for you perhaps, is what you see in this picture. In Japan this soroban has been used accurately and rapidly since 500 years ago. There are many computers now…Full description
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Practice Set
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EASA PART 66 GUIDE A guide to student and LAE (License Aircraft Engineer) who want to get the LWTR license or convert it from BCAR Section L to EASA Part 66.. Including EASA Part 66 Module, EASA p...
