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★讀寫加減乘除的祕訣..................... |
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1. 四則運算的英文說法: |
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+ addition 加法
– subtraction 減法
× multiplication 乘法
÷ division 除法 |
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A |
and / plus |
B |
=
(equals)
(is)
(is equal to) |
C |
minus |
times / multiplied by |
divided by |
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2. A + B = C 若用 A and B 來表示時,要用複數動詞 are。若用 plus 連接,則用單數動詞 is,即 A and B are C 或 A plus B is C |
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3. 用 is、are 表示「等於」較為口語,寫作時則要使用 equals 或 is equal to 比較好。 |
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4. 減法還有一種說法,但數字順序與上表相反,不過此用法較為少見。 |
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A minus B equals C = B from A equals C
‧Four minus two equals two.
= Two from four equals two. |
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5. multiplied 是 multiply的過去分詞,表示「使……相乘」,要用被動語態(multiplied by)。除法的用法相同,divided 是 divide 的過去分詞,表示「除以」的意思。 |
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★你知道嗎?......................... |
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九九乘法表的英語說法是 multiplication table,以 2(the two times table)為例:
2 x 1 = 2 Two times one equals two.
2 x 2 = 4 Two times two equals four.
2 x 3 = 6 Two times three equals six.
2 x 4 = 8 Two times four equals eight.
2 x 5 = 10 Two times five equals ten.
2 x 6 = 12 Two times six equals twelve.
2 x 7 = 14 Two times seven equals fourteen.
2 x 8 = 16 Two times eight equals sixteen.
2 x 9 = 18 Two times nine equals eighteen.
為了讀寫方便也可直接唸數字:Two one two, two two four, two three six, two four eight, two five ten . . . |
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