Cardinal and ordinal numbers By Conceição Sousa

Cardinal numbers 0OH ZERO 1ONE 2TWO 3THREE 4FOUR 5FIVE 6SIX 7SEVEN 8EIGHT 9NINE 10TEN 11ELEVEN 12TWELVE

Teen numbers 13THIRTEEN 14FOURTEEN 15FIFTEEN 16SIXTEEN 17SEVENTEEN 18EIGHTEEN 19NINETEEN

TY numbers (tens) 20TWENTY 30THIRTY 40FORTY 50FIFTY 60SIXTY 70SEVENTY 80EIGHTY 90NINETY

Remember: My daughter is eighteen years old and her grandmother is eighty

We write the tens and the units, separated by a hyphen. 21TWENTY-ONE 32THIRTY-TWO 55FIFTY-FIVE 97NINETY-SEVEN

100 ONE HUNDRED  or A HUNDRED

After hundred you need and 108A hundred and eight 213Two hundred and thirteen 390Three hundred and ninety 666Six hundred and sixty-six

1000 A THOUSAND  or ONE THOUSAND

After thousand you need a comma 1004One thousand, four 1118One thousand, one hundred and eighteen 3500Three thousand, five hundred 6894Six thousand, eight hundred and ninety-four

A MILLION  or ONE MILLION

FIVE MILLION Millions IS WRONG

Ordinal numbers FIRST SECOND THIRD FOURTH FIFTH SIXTH SEVENTH EIGHTH NINTH TENTH Ordinal numbers ending: 1……..st 2……..nd 3……. rd Except: 11eleventh 12twelfth 13thirteenth Others….. th

Ordinal numbers follow the same rule as cardinal numbers. 15 th fifteenth 20 th twentieth 21 st twenty-first 22 nd twenty-second 23 rd twenty-third 24 th twenty-fourth 32 nd thirty-second 55 th fifty-fifth 61 st sixty-first

Ordinal numbers are used with dates Today is December We’ll say: ‘today is December the eighth two thousand nine.’ or ‘today is the eighth of December two thousand nine.’

Mathematical Operations + PLUS - MINUS X TIMES ÷ DIVIDED BY