Numbers: Hundred, Thousand, Million, Billion

200   two hundred
1,000   a/one thousand
1,001   a thousand and one
1,010   a thousand and ten
2,000   two thousand
10,000   ten thousand
11,000   eleven thousand
100,000   a/one hundred thousand
1,000,000   a/one million
2,000,000   two million
1,000,000,000   a/one billion 

EXERCICES:

• http://www.dadsworksheets.com/v1/Worksheets/Numbers%20in%20Standard,%20Expanded%20and%20Word%20Form/Seven_Digit_Number_To_Word_Form_V1.html
•  http://www.dadsworksheets.com/v1/Worksheets/Numbers%20in%20Standard,%20Expanded%20and%20Word%20Form/Seven_Digit_Number_To_Word_Form_V2.html
• http://www.dadsworksheets.com/v1/Worksheets/Numbers%20in%20Standard,%20Expanded%20and%20Word%20Form/Seven_Digit_Number_To_Word_Form_V2.html
• http://www.dadsworksheets.com/v1/Worksheets/Numbers%20in%20Standard,%20Expanded%20and%20Word%20Form/Seven_Digit_Number_To_Word_Form_V3.html
• http://www.dadsworksheets.com/v1/Worksheets/Numbers%20in%20Standard,%20Expanded%20and%20Word%20Form/Seven_Digit_Number_With_Gaps_To_Standard_Form_V1.html
• http://www.dadsworksheets.com/v1/Worksheets/Numbers%20in%20Standard,%20Expanded%20and%20Word%20Form/Seven_Digit_Number_With_Gaps_To_Standard_Form_V4.html

Write Out Numbers: A Tool to Help You Write Out Numbers Correctly -> http://banking.about.com/library/bl_write_out_numbers.htm