因數與公因數(五年級) ~ 清大附小 馮汝琪老師(有cc字幕、影片重點整理)
Synopsis
因數的概念不難，但難在未來是否能分辨出，所遇到的應用問題究竟是因數還是倍數問題，因此若是現在概念奠基穩固，未來就什麼 ...
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