TIME PERIODS

SYMBOLS



+	plus or positive
-	minus or negative
±	plus or minus
X	times
·	times
*	times
÷	divided by
=	equal to
	not equal to
>	greater than
<	less than
>	greater than or equal to
<	less than or equal to
~	similar
	congruent
	approximately equal to
	identical with
:	is to; the ratio of
°	degree
"	inches; seconds of arc
'	feet; minutes of arc
	perpendicular to
...	and so on; continues
	infinity
	line (read as "line AB")
	line segment (read as "line segment XY")
	ray (read as "ray EF")
	angle
	right angle
%	percent
@	at the rate of
¢	cent(s)
$	dollar(s)
	exponent (where n is the exponent)
	root
	p pi; the ratio of the circumference of a circle to its diameter (3.14159265…

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