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21:24"}]]}],["$","div",null,{"className":"text-xs whitespace-pre-wrap","children":"明日から実践してみようと思います!ありがとうございました!"}]]}]]}]]}]}],["$","h1",null,{"className":"text-xl font-semibold","children":"よく一緒に読まれている人気の回答"}],["$","div",null,{"className":"mb-8","children":["$","div",null,{"className":"divide-y","children":[["$","div",null,{"children":["$","$L7",null,{"href":"/advice/lpAjsmEBEoAxXtWxx3SV","children":["$","div",null,{"className":"flex items-center py-4","children":[["$","div",null,{"className":"flex-1 mr-3","children":[["$","div",null,{"className":"mb-1","children":"計算ミス"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"こんにちは~(*´ω`*)\n慶應義塾大学経済学部のCanaryです!\n\n計算ミスを防ぐ方法は\n(1)しやすいミスを意識する\n(2)こまめに検算をする\nこの2つが特に大切です!\n最後に(おまけ)もつけました~\n\n(1)しやすいミスを意識する\nそれぞれの人にとって、しやすいミスしにくいミスはあります。\n例えば、字が汚い人で6と0を読み間違える。cosxを微分した時マイナスを忘れる。割り算でよく間違える。などなど色々あります。\n適当な裏紙を1枚準備して、計算ミスをしたら、そのミスの内容を裏紙に書いていってください。そうすると、自分が良く計算ミスをする箇所が可視化されるはずです!これ以降は、そのよくやるミスを意識しながら演習するようにしましょう!\n\n(2)こまめな検算をする\n1は計算ミスの発生を防ぐものでしたが、こちらは発生した計算ミスを修正するための方法です!\n例えば、4×7×25×8を計算して、560と書いてしまったとき、元の素因数だけに注目すると、2^5×5^2×7なので、末尾は0が2つ並ぶはずです。560と計算したらすぐその先に進むのではなく、ちょっと立ち止まって確認するだけで、計算ミスに気が付き修正することができます!\n\n(おまけ)計算を簡単にする\n4×7×25×8を計算するときに、\n4×7×25×8=28×25×8=700×8=5600\nと計算していませんか?\nこれは、4と25が見えた瞬間に4×25を計算してしまうと、\n7×8×100になり、あとは九九の計算と末尾に00をつけるだけなので、計算ミスをしにくい解き方になります!\nさらにさらに、最初はこの方法で解いてから、その直後に、4×7×25×8=28×25×8=700×8=5600で計算することで、検算することもできます!\n計算順序を工夫したり、計算順序を2パターンで解くのはミスを防ぐためにオススメです!"}],["$","div",null,{"className":"flex mb-1","children":[["$","svg",null,{"stroke":"currentColor","fill":"currentColor","strokeWidth":"0","viewBox":"0 0 24 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items-center py-4","children":[["$","div",null,{"className":"flex-1 mr-3","children":[["$","div",null,{"className":"mb-1","children":"計算力を上げる"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"たまに計算ミスを対策もせず、ケアレスミスとして片付けている人を見かけますがあなたはきちんと問題視しているのが素晴らしい!それだけで一歩リードです!👌\n\nあなたの考えている通り、絶対に計算ミスを甘くみてはいけません!!初期の計算ミスによって大問ごっそり点がなくなることもあります。\n\nではどうやって計算ミスを減らしていくのかについてですが、\n\nまず、自分がどういった箇所で計算ミスをしているのか細かく分析してみてください!!\n\n小数点のある計算に弱いのか、\n分母の割り算がある計算で間違えやすいのか、\n引き算で上の位を引き忘れやすいのか、\n\n色々あると思います。\nその上で対策をたてましょう!\n\n私も受験生当時、かなり計算ミスで痛い思いをしていたので、自分がミスした式をまとめたノートを一冊作って、同じ過ちを繰り返さないよう努めていました。ちなみに私は分母の割り算があるとめちゃくちゃミスりやすかったので赤のグルグルで囲って自分に注意喚起して、分母の割り算が出てきたら真っ先に逆数の掛け算に直してました!!それをし始めてかなりミスが減り、計算も早くなったように思います😄\n\nまた、複雑な計算を眠い時に惰性で解いたりすると高確率でどこかでミスしてしまうので、数学の過去問を解くのは頭のすっきりしている午前中に行ってました。(頭の働きやすい時間は各人によって違うと思うので参考までに!)\n\nまた、これは補足ですが\n化学や物理では、単位をしっかりと書くことで立式段階のミスをかなり減らせます!!\n\nもし、理科系の科目でも悩んでいるようなら、\n\n何を求めるのか(単位確認)\n→立式(単位の整合性確認)\n\nをすると、かなりミスが減るので是非是非実践してみてくださいね!\n\n頑張れ〜!!💪💪"}],["$","div",null,{"className":"flex mb-1","children":[["$","svg",null,{"stroke":"currentColor","fill":"currentColor","strokeWidth":"0","viewBox":"0 0 24 24","className":"text-subPrimary 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items-center py-4","children":[["$","div",null,{"className":"flex-1 mr-3","children":[["$","div",null,{"className":"mb-1","children":"計算練習について"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"はじめまして!こんにちは。\n\n大阪大学人間科学部に所属している者です。\n\n私も現役時代に計算ミスに苦しんだ経験があるので、お力になれたらいいなと思い回答させていただきます。\n\nまず、中学入試の問題をやることはあまりおすすめしません。\n計算問題単体で出題されることはまずないので、中学入試の問題を解くことよりも、大学受験レベルの問題を時間内に正確に解くスピードを上げていくのが得策だと思います。\n\nたとえば大阪大学の文系数学は見直しの時間を含め一問におよそ30分かけることができます。\nこの場合、練習の段階で一問ずつ、20分で正確に解き切る練習をしておくとよいです。\n\n時間が無限にあれば計算ミスは必ず見つけることができます。\nしかし、実際は、時間が有限である中で解法を導き出し、計算をミスなく終えなければなりません。\n\nですから、大学受験のレベルの問題で計算ミスをなくしていくことが一番の近道であると思います。\n\nこれは共通テストの数学にもあてはまります。\n解法を素早く思いつけば、そのぶん計算に時間を使いミスなく解くことができます。\n\n数学は\n①解法を思いつくこと\n②計算できること\nの二つが組み合わさって解くことができるものだということを知っておいてください。\n\n\n大阪大学文系数学は近年易化しています。\n解法は多くの人が思いつきやすく、計算力勝負になることも考えられます。\n\nそれでもやはり、解法を思いつくスピードが速ければ速いほど、落ち着いて焦らず計算に臨めると思うので、計算ばかりでなく解法を考える練習も並行してやるといいと思います。\n\n長くなってしまいましたが、質問者様の計算ミスへの悩みが解消されることを願っています。\n\nもし疑問点や追加で聞きたいこと等ございましたらいつでもご連絡ください!\n\nここまで読んでくださりありがとうございました。\n\n\n\n\n大阪大学人間科学部 のぞみ"}],["$","div",null,{"className":"flex 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