Numbers (props or theings stand alone) are usually written as digits.
Hand v 5 fingers
Tens
Multiples of ten are, in writing, composed by -ty after the root:
Nine ninety (9ty)
Eight eighty (8ty)
Seven seventy
Six sixty
Five fivety
Four fourty
Three threety
Two twoty
10 – 20
The only exception is teen (ten) that exists besides ‘onety’.
Nineteen – onetynine
Eightteen – onetyeight
Seventeen – onetyseven
Sixteen – onetysix
Fiveteen – onetyfive
Fourteen – onetyfour
Threeteen – onethree
Twoteen – onetywo
Oneteen – onetyone
Ordinals
De suffix –th converts a number into an ordinal (prop):
Nineteenth, 19th
Seventyth, 70th
Teenth, 10th
Nineth, 9th
Eightth, 8th
Fiveth, 5th
Threeth, 3th
Twoth, 2th
Oneth, 1th
Fraction (a theing or a spec)
De suffix –tr converts a number into a fraction:
Sixtr (1/6)
Fourtr (1/4)
Threetr (1/3)
Twotr (1/2). Half is permitted as well.