Cardinal numbers

Digits (units) 0 - zero 1 – one 2 – two 3 – three 4 – four 5 – five 6 – six 7 – seven 8 – eight 9 – nine	Numbers (10+) 10 – ten 11 – eleven 12 – twelve 13 – thirteen 14 – fourteen 15 – fifteen 16 – sixteen 17 – seventeen 18 – eighteen 19 – nineteen	Tens (20+) 20 – twenty 30 – thirty 40 – forty 50 – fifty 60 – sixty 70 – seventy 80 – eighty 90 – ninety	Composed numbers ex : 21= 20+1 = twenty-one 22 – twenty-two 23 – twenty-three 24 – twenty-three ...... Hundreds 100 –  a hundred       –  one hundred 200 – two hundred 300 – three hundred .
Remember!          Put a hayphen (-) between tens and units                 ex : 39 =30 + 9   thirty-nine          Write “and” between hundreds and tens/units         ex : 206 =200 + 6                   two hundred and six			Thousands and more... 1,000 – a thousand          - one thousand 2,000 – two thousand 10,000 – ten thousand 11,000 – eleven thousand 12,000 – twelve thousand 100,000 – a hundred                 thousand 1,000,000 – one million...

Some links about numbers:
-British/American differences and fractional numbers.
-Some interesting notes about cardinal numbers (downloadable document)