≌
congruent ['kɒŋgrʊənt] to，全等(两个图形形状相同、大小相等)，“△ABC≌△DEF”读作：Triangle ABC is congruent to Triangle DEF.
≈
approximately equal to 约等于号，“3×3≈10” 读作：Three multiplied by three is approximately equal to ten.
<
is less than 小于号，“1<2”读作 One is less than two.
>
is greater than 大于号，“2>1”读作：Two is greater than one.
≤
is less than or equal to 小于或等于号，“2≤3”读作：Two is less than or equal to three.
≥
is greater than or equal to 大于或等于号，“5≥4”读作：Five is greater than or equal to four.
+
plus 加号;正号，“1+1”读作：one plus one
-
minus ['maɪnəs]; negative ['negətɪv]，减号;负号，“2-1”读作：two minus one，“-3”读作：minus three或negative three，“2-(-3)”读作：two minus negative three
±
plus-minus sign 正负号，“±1” 读作：plus or minus one
×
multiplied [’mʌltɪ’plaɪd] by ; times，乘号，“2×3” 读作：two multiplied by three 或 two times three
÷
divided by 除号，“4÷2”读作：four divided by two
=
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.
%
percent 百分之……，“10%”读作：ten percent
∞
infinity [ɪn'fɪnɪtɪ] 无限大号，“-∞” 读作：negative infinity
square root 平方根，“ =4”读作：The square root of sixteen is four.
cube root 立方根，“ =3”读作：The cube root of 27 is 3.
∵
since; because 因为，“∵1+1=2”读作：because one plus one equals two
∴
hence; therefore 所以，“∴1<2”读作：hence one is less than two
闫丽 经验： 17年 案例：6461 擅长：美国
本网站（www.aoji.cn，刊载的所有内容，访问者可将本网站提供的内容或服务用于个人学习、研究或欣赏，以及其他非商业性或非盈利性用途，但同时应遵守著作权法及其他相关法律规定，不得侵犯本网站及相关权利人的合法权利。除此以外，将本网站任何内容或服务用于其他用途时，须征得本网站及相关权利人的书面许可，并支付报酬。
本网站内容原作者如不愿意在本网站刊登内容，请及时通知本站，予以删除。
澳际学费在线支付平台
