The key to exercise solutions in chapter 5.1 - Vocabulary for the textbook Wider World 4 - Workbook with authors Damian Williams from Pearson Education
Question
Write the numbers as words.
Answer
six thousand four hundred and ninety-nine
six point eight billion
seven billion three hundred thousand
a hundred and twenty-three
four hundred and seventy-six thousand
twelve billion four hundred and thirteen million three hundred and eighty-nine thousand six hundred and seventy-two