英文加减乘除符号_英语中的加减乘除用英语怎么说
+ 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 ℃ Celsius system 摄氏度 { open brace, open curly 左花括号 } close brace, close curly 右花括号 ( open parenthesis, open paren 左圆括号 ) close parenthesis, close paren 右圆括号 () brakets/ parentheses 括号 [ open bracket 左方括号 ] close bracket 右方括号 [] square brackets 方括号 . period, dot 句号，点 | vertical bar, vertical virgule 竖线 & ampersand, and, reference, ref 和，引用 * asterisk, multiply, star, pointer 星号，乘号，星，指针 / slash, divide, oblique 斜线，斜杠，除号 // slash-slash, comment 双斜线，注释符 # pound 井号 \ backslash, sometimes escape 反斜线转义符，有时表示转义符或续行符 ~ tilde 波浪符 . full stop 句号 , comma 逗号 : colon 冒号 ; semicolon 分号 ? question mark 问号 ! exclamation mark (英式英语) exclamation point (美式英语) ' apostrophe 撇号 - hyphen 连字号 -- dash 破折号 ... dots/ ellipsis 省略号 " single quotation marks 单引号 "" double quotation marks 双引号 ‖ parallel 双线号 & ampersand = and ～ swung dash 代字号 § section; division 分节号 → arrow 箭号；参见号
加减乘除表示法 1. “加”用plus，and或add表示；“等于”用is，make，equal等词表示。 2+3=? 可表示为： How much is two plus three? 2+3=5 Two plus three is five． Two and three is equal to five． Two and three make five． Two added to three equals five． If we add two to/and three, we get five． 二加三等于五 2. “减”用 minus或 take from表示 10－6＝? How much is ten minus six? 10-6=4 Ten minus six is four． Take six from ten and the remainder is four. Six (taken) from ten is four． 十减去六等于四 3. “乘”用time（动词）或multiply表示 3X4＝? How much is three times four? 3X4=12 Three times four is/are twelve． Multiply three by four，we get twelve． Three multiplied by four makes twelve． 三乘以四等于十二 4. “除”用divide的过去分词形式表示 16÷4=? How much is sixteen divided by four? 16÷4＝4 Sixteen divided by four is four． Sixteen divided by four equals/gives/makes four． 十六除以四等于四。
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