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by simonmysun 748 days ago
One of my friends always say e.g. a 29,99€ item as "over 20€", while I directly round them up. It has caused several cases of misunderstanding because when I mention something costs 30€ he can't match the 29,99€ item in his mind. I believe thr number perception can be trained and proper calculated can be attached to the moment a number is seen.