You have made it all the way up to “99.” Now you will begin working on large numbers. The big numbers — hundreds, thousands, millions — require the simple application of modified Roman numerals. These signs are compound signs. The letter “C” represents the Roman numeral for “hundred.” When you want to sign a number in the hundreds, you form the number, then add the letter “C.” For example, if you sign “1” then the letter “C” this equals “100.” You can continue in the same pattern for “200,” “300,” “400,” and so on. A good memory aid: A hundred-dollar bill is often referred to as a “C note.”

HUNDRED: Place the letter “C” in the left palm.

The letter “M” represents the Roman numeral for “thousand.” When you want to sign a number in the thousands you form the number, and add the letter “M.” It is the same pattern that you use for forming numbers in the hundreds. A “million” is signed by tapping the letter “M” twice in the palm.

THOUSAND: Tap the extended fingers of the letter “M” once in your left palm.