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. period 句号 , comma 逗号 : colon 冒号 ; semicolon 分号 ! exclamation 惊叹号 ? question mark 问号  ̄ hyphen 连字符 ' apostrophe 省略号;所有格符号 — dash 破折号 ‘ ’single quotation marks 单引号 “ ”double quotation marks 双引号 ( )parentheses 圆括号 [ ]square brackets 方括号 《 》French quotes 法文引号;书名号 ... ellipsis 省略号 ¨ tandem colon 双点号 " ditto 同上 ‖ parallel 双线号 / virgule 斜线号 & ampersand = and ~ swung dash 代字号 § section; division 分节号 → arrow 箭号;参见号 + plus 加号;正号 - minus 减号;负号 ± plus or minus 正负号 × is multiplied by 乘号 ÷ is divided by 除号 = is equal to 等于号 ≠ is not equal to 不等于号 ≡ is equivalent to 全等于号 ≌ is equal to or approximately equal to 等于或约等于号 ≈ is approximately equal to 约等于号 < is less than 小于号 > is more than 大于号 ≮ is not less than 不小于号 ≯ is not more than 不大于号 ≤ is less than or equal to 小于或等于号 ≥ is more than or equal to 大于或等于号 % per cent 百分之… ‰ per mill 千分之… ∞ infinity 无限大号 ∝ varies as 与…成比例 √ (square) root 平方根 ∵ since; because 因为 ∴ hence 所以 ∷ equals, as (proportion) 等于,成比例 ∠ angle 角 ⌒ semicircle 半圆 ⊙ circle 圆 ○ circumference 圆周 π pi 圆周率 △ triangle 三角形 ⊥ perpendicular to 垂直于 ∪ union of 并,合集 ∩ intersection of 交,通集 ∫ the integral of …的积分 ∑ (sigma) summation of 总和 ° degree 度 ′ minute 分 〃 second 秒 # number …号 ℃ Celsius system 摄氏度 @ at 单价
萌萌尛宝贝
1. 加法:加法运算通常用and, plus, add 等表示。如:Seven and [plus] eight is [are, make(s)] fifteen. 7加8等于15。If you add ten to eight, you get eighteen. 10加8等于18。2. 减法:减法运算通常用 minus, from, take (away) (from) 等表示。如:Eight minus five is [leaves] three. 8减 5等于3。4 from 20 leaves 16. 20减4余16。Ten take away four is [leaves] six. 10减去4得6。(D8)If you take five from twelve, you’re left with seven. 12减去5得7。If you take four away from ten, that leaves six. 10减去4得6。3. 乘法:乘法运算通常用 times, multiplied by, twice 等表示。如:Five times three is [equals] fifteen. 5乘以3等于15。Five multiplied by two equals ten. 5乘以2等于10。What is twice two? 2乘2是多少? 4. 除法:除法运算通常用 divided by, into 等表示。如:Twelve divided by four is [makes] three. 12除以4等于3。Four into twelve is [makes] three. 12除以4等于3。
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1、【加法】+号
在英语里一般用这三个:①and②plus③add
例:Seven and/plus eight makes fifteen.7加8等于15。If you add tento eight,you get eighteen.10加8等于18。
1、【减法】-号
在英语里一般用这三个:①minus②from③take(away)(from)
例:Eight minus five is(leaves)three.8减5等于3。/8减5余3。注:在减法里,=也可以用leaves,同汉语里的“余”4 from20 leaves 16.20减4余16。Ten take awayfour is six.10减去4得6。
3、【乘法】X号
在英语里一般用这两个:①times②multipliedby
例:Five times three is/equals fifteen.5乘以3等于15。Fivemultiplied bytwo equals ten.5乘以2等于10。
4、【除法】÷号
在英语里一般用这两个:①divided by②into
例:Twelve divided by four makes three.12除以4等于3。Four intotwelve is three.
其他的英文数学符号表达
1、正负号±
plus-minus sign 正负号
“±1” 读作:plus or minus one
2、等于号=
equals; is equal to 等于号
“1+1=2”读作:One plus one equals two.或 One plus one is equal to two.
3、不等于号≠
is not equal to 不等于号
“a≠b”读作:a is not equal to b
4、百分号%
percent 百分之……
“10%”读作:ten percent
5、括号()
parentheses [pəˈrenθəsɪs] ; brackets [ˈbrækɪt]; round brackets 括号