plus
加号;正号
例子:
“2 1”讀作:two plus one
-
minus ['maɪnəs]; negative ['negətɪv]
減号;負号
例子:
“4-1”讀作:four minus one
“-2”讀作: minus two或 negative two
“4-(-2)”讀作:fore minus negative two
×
times 或者multiply
乘号
例子:
“2×3” 讀作: two times three
或 two multiplies three
÷
divided by
除号
例子:
“4÷2”讀作:four divided by two
=
equals; is equal to
等于号
例子:
“1 1=2”讀作:One plus one equals two.
或 One plus one is equal to two.
<
is less than
小于号
例子:
“1<2”讀作 One is less than two.
>
is greater than 或者 is bigger than
大于号
例子:
“3>1”讀作:Three is greater than one.
或 Three is bigger than one.
%
percent
百分之……
例子:
“20%”讀作:twenty percent
,
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