plus
加号;正号
例子:
“2 1”读作:twoplusone
-
minus['maɪnəs];negative['negətɪv]
减号;负号
例子:
“4-1”读作:fourminusone
“-2”读作:minustwo或negativetwo
“4-(-2)”读作:foreminus negativetwo
×
times 或者multiply
乘号
例子:
“2×3” 读作: twotimesthree
或 twomultipliesthree
÷
divided by
除号
例子:
“4÷2”读作:fourdivided bytwo
=
equals; is equal to
等于号
例子:
“1 1=2”读作:Oneplusoneequalstwo.
或 Oneplusoneis equal totwo.
<
is less than
小于号
例子:
“1<2”读作 Oneis less thantwo.
>
is greater than 或者 is bigger than
大于号
例子:
“3>1”读作:Threeis greater thanone.
或 Threeis bigger thanone.
%
percent
百分之……
例子:
“20%”读作:twentypercent