Our third and final set of number words focus on multiples of ten from thirty to ninety, plus the words hundred, thousand, and million.
With just the words from levels 7-6, 7-7, and 7-8 -- plus a little knowledge of when to use a hyphen -- students can now spell every whole number up to nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine. Impressive!