![]() x − 100 100 − x 100x
おつりは100−x(円)
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![]() x − 50 50 − x 50x
50円切手をx枚買ったのだから,代金は50×x=50x(円)
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![]() x − 50 50 − x 50x
長方形の面積は縦×横だから,面積は面積 50x(cm2)
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![]() x − 50 50 − x 50x
代金は50×x=50x (円)
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![]() x − 1000 1000 − x 1000x ![]()
人数分の割り算になります
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![]() 50x − 1000 1000 − 50x 50 − 1000x
代金が50x(円)だからおつりは,1000−50x(円)
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![]() x − 150 50x + 100 50x − 100 100 − 50x
くだものの重さ50x(g)と箱の重さ100(g)の合計が全体の重さ50x+100(g)
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![]() 15 − x x − 15 15x
温度差は,(最高気温)−(最低気温)だから,x−15 (°C)
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次の数量を,文字式で表しなさい. 文字式の表し方の約束に従って,文字と数の積は3xなどのように,掛け算の記号を省略して書くものとします. 解答は,右の数字,文字,記号を順にタップ(クリック)して入力しなさい.CLキーで最後の1文字を消せる.ACで全消去,やり直しになる. |
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