quadr-/quar-
quint-/pent-
oct-
dec-
cent-
100
1/4
What is "quarter"?
100
A 5-sided geometric building in Washington, D.C.
What is "pentagon"?
100
The shape of a stop sign.
What is "octagon"?
100
10 years.
What is "decade"?
100
1 penny.
What is "cent"?
200
A group of 4 musicians.
What is "quartet"?
200
A set of 5 children born together.
What is "quintuplet"?
200
The span of 8 notes in music.
What is "octave"?
200
The 10th month on the Roman calendar (but the 12th month on the modern calendar).
What is "December"?
200
100 years.
What is "century"?
300
Parallelograms, Trapezoids, Squares, Rhombuses, Rectangles, Kites
What are "quadrilaterals"?
300
The most pure and essential element.
What is "quintessential"?
300
The 8th month of the Roman calendar (but 10th month of our modern calendar).
What is "October"?
300
Numbering in groups of 10.
What is "decimal"?
300
A system of measuring temperature from 0-100 degrees (also known as Celsius).
What is "centigrade"?
400
Bundles of 4
What is "quadruped"?
400
An athletic event made of 5 track and field events.
What is "pentathlon"?
400
A formula for gasoline that contains 8 carbon elements bonded to 18 hydrogen elements.
What is "octane"?
400
The slaughter of 1 out of every 10 people.
What is "decimate"?
400
A 100 year celebration
What is "centennial"?
500
1/4 of a circle.
What is "quadrant"?
500
1,000,000,000,000,000,000
What is "quintillion"?
500
A person who lives to be in their 80s.
What is "octogenarian"?
500
1/10 of a meter.
What is "decimeter"?
500
A once-in-200 years Celebration.
What is "bicentennial"?
M
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