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# Language of Math

## Prefixes

poly– means “many”

uni– and mono– mean 1

bi– means 2

tri– means 3

quad– means 4

quin– and pent– mean 5

hex– and sex– mean 6

sept– and hept– mean 7

oct– means 8

non– means 9

dec– means 10

deci– means tenth (1/10)

cent– means hundred (100)centi– means hundredth (1/100)

kilo– means thousand (1,000)milli– means thousandth (1/1,000)

mega– means milllion (1,000,000)

micro– means millionth (1/1,000,000)

mil– means thousand (1,000)

nano– means billionth (1/1,000,000,000)

## Suffixes

gon– means “angle” (polygon = many angle)

–lateral means “side” (quadrilateral = four sides)

dia– means “across”

–meter means “measure” (Diameter—measure across the circle)

## Other definitions

mile means “1,000 paces”.

million means “1,000 thousands”.

A millennium is 1,000 years.

squared means “to the second power”.

cubed means “to the third power”.

Denominate means “to name.”

Numerate means “to specify the number of…”.

The denominator of a fraction is “the name of the fraction,” and tells “the number of equal parts in the whole.”

Since the denominator gives the name of the fraction, the denominator is a noun.

The numerator of a fraction is “the number of equal parts being used.”

Since the numerator tells us “the number of,” the numerator is an adjective.