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11/08/2004

「足し算」「引き算」「掛け算」「割り算」を英語で何と言うか?

小学校で習うような簡単なことでも、英語で言おうとすると困ってしまうことが結構あります。今日はそんな一例。算数で習う「足し算」「引き算」「掛け算」「割り算」を英語で何と言うのでしょうか?


<解答>

 「足し算」:"addition" 「引き算」:"subtraction"

 「掛け算」:"multiplication" 「割り算」:"division"

それぞれ、"add"、"subtract"、"multiply"、"divide"で「足す」「引く」「掛ける」「割る」という動詞になります。ただし、「足し算」「引き算」の場合は、"plus""minus"を使った表現の方が分かりやすいかもしれません。

 「5+3=8」:"3 added to 5 makes 8."、"5 plus 3 is 8."

 「5-3=2」:"3 subtracted from 5 leaves 2"、"5 minus 3 is 2."

 「5×3=15」:"5 multiplied by 3 is 15."

 「15÷5=3」:"15 divided by 5 is 3."

なお、「和」「差」「積」「商」はそれぞれ"summation"、"difference"、"product"、"quotient"と表現します。また、割り算の「余り」は"remainder"と言います。

ちなみに、「±5」を日本語では「プラスマイナス5」と読みますが、英語では"plus or minus 5"と"or"が必要になります。

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