Brain Age Concentration Training Community
ケンチャリンコkenchari
Question
5日は鬼計算8バック、計算20が12秒、計算100が1分4秒。鬼計算はテクニック使わず、完全ガチです。自力だとなかなか10バックいけないです。何か良い記憶法はありますか?
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