Online Converters: 1. Write out numbers in words: Cardinal (integers, decimals). Ordinal (position in a list). 2. Sums of money: USD Dollar currency amounts. Write US checks. 3. Time / American and British English: Telling time. Years. Calendar dates. Spell out numbers in eight different letter cases.

1. Convert and write calendar dates using Roman numerals. 2. Hindu-Arabic numbers to Roman numerals. 3. Check that the Roman numerals are valid. Write them as regular numbers. 4. Roman numerals addition and subtraction: calculating with Roman numerals.

1. Round Off Positive and Negative Numbers to Whole or Decimal Places 2. Add and Subtract Numbers and Learn How To Do It: Calculate the Sum and the Difference and Learn How To Calculate by Using the Column Method, From Right to Left. Detailed explanations