Tips to success in Driving Test
This is your opportunity to earn the right to be able to drive with no one sitting next to you and gain your independence. You have probably invested a lot of time, effort and money getting to this point. When you are successful this is just the beginning of a new chapter in your driving career.
Use hundred when there is a specific number, and use hundreds when you don't know or can't count how many. This rule also applies to thousand/thousands and million/millions. This skeleton is thousands of years old. This skeleton is three thousand years old.
When saying numbers, always use the singular form:
250 = Two hundred and fifty
Two hundreds and fifty
7,812 = Seven thousand, eight hundred and twelve
Seven thousands, eight hundreds and twelve
$10,000,000 = Ten million dollars
Ten millions of dollars