Direct: The number of paper -sheets and their weights ., The area of cultivated land and the crop harvested is a case of, The side of a square and its perimeter , Indirect: The number of workers on a job and the time to complete the job ., Number of workers and number of hours to complete a task, Keeping the same area of a triangle its base and height,

Proportion

印刷
埋め込み

リーダーボード

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オプション

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自動保存: を復元しますか?