6年 公立中高一貫校 算数 第11回 ab問題 速さ part1

2021 23:09
Synopsis
ポイント 速さの単位をそろえる計算 秒速m×60=分速m 分速m×60÷1000=時速km 秒速m×3.6=時速km 速さの公式「速さ×時間= ...
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