sigma Straight Angle Acute Angle complement closed interval Nonagon less than or equal to percent n-th root (radical) Right Angle delta multiplication dot greater than angle union plus sign pi relative complement minus - plus Octagon Parallelogram line Right Triangle plus - minus Kite congruent to empty set Heptagon Acute Triangle real numbers set parallel equals sign probability of event A caret Obtuse Triangle division slash open interval Scalene Triangle ordered pair rational numbers set greater than or equal to set not subset Equilateral Triangle intersection function of x Obtuse Angle division sign / obelus golden ratio Rhombus exponent Line Segment integer numbers set Rectangle factorial similarity square root combination Complete Angle / Complete Revolution proper subset / strict subset Trapezoid Decagon equality element of Hexagon ray less than parentheses not element of function composition natural numbers set (without zero) Pentagon approximation times sign universal set not equal sign asterisk absolute value natural numbers set (with zero) Reflex Angle perpendicular Square degree cube root brackets permutation e constant / Euler's number minus sign Isosceles Triangle subset complex numbers set sigma Straight Angle Acute Angle complement closed interval Nonagon less than or equal to percent n-th root (radical) Right Angle delta multiplication dot greater than angle union plus sign pi relative complement minus - plus Octagon Parallelogram line Right Triangle plus - minus Kite congruent to empty set Heptagon Acute Triangle real numbers set parallel equals sign probability of event A caret Obtuse Triangle division slash open interval Scalene Triangle ordered pair rational numbers set greater than or equal to set not subset Equilateral Triangle intersection function of x Obtuse Angle division sign / obelus golden ratio Rhombus exponent Line Segment integer numbers set Rectangle factorial similarity square root combination Complete Angle / Complete Revolution proper subset / strict subset Trapezoid Decagon equality element of Hexagon ray less than parentheses not element of function composition natural numbers set (without zero) Pentagon approximation times sign universal set not equal sign asterisk absolute value natural numbers set (with zero) Reflex Angle perpendicular Square degree cube root brackets permutation e constant / Euler's number minus sign Isosceles Triangle subset complex numbers set
(Print) Use this randomly generated list as your call list when playing the game. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.
I-sigma
G-Straight Angle
G-Acute Angle
N-complement
I-closed interval
O-Nonagon
B-less than or equal to
I-percent
I-n-th root (radical)
G-Right Angle
I-delta
B-multiplication dot
B-greater than
G-angle
N-union
B-plus sign
O-pi
N-relative complement
B-minus - plus
O-Octagon
O-Parallelogram
G-line
G-Right Triangle
B-plus - minus
O-Kite
G-congruent to
N-empty set
O-Heptagon
G-Acute Triangle
B-real numbers set
G-parallel
B-equals sign
N-probability of event A
I-caret
O-Obtuse Triangle
B-division slash
I-open interval
O-Scalene Triangle
N-ordered pair
I-rational numbers set
B-greater than or equal to
N-set
N-not subset
O-Equilateral Triangle
N-intersection
I-function of x
G-Obtuse Angle
B-division sign / obelus
I-golden ratio
O-Rhombus
I-exponent
G-Line Segment
G-integer numbers set
O-Rectangle
N-factorial
G-similarity
I-square root
N-combination
G-Complete Angle / Complete Revolution
N-proper subset / strict subset
O-Trapezoid
O-Decagon
N-equality
N-element of
O-Hexagon
G-ray
B-less than
B-parentheses
N-not element of
I-function composition
O-natural numbers set (without zero)
O-Pentagon
I-approximation
B-times sign
N-universal set
B-not equal sign
B-asterisk
I-absolute value
N-natural numbers set (with zero)
G-Reflex Angle
G-perpendicular
O-Square
G-degree
I-cube root
B-brackets
N-permutation
I-e constant / Euler's number
B-minus sign
O-Isosceles Triangle
N-subset
I-complex numbers set