Adding Roman Numerals can be difficult. For one thing, you cant really tell how big a number is by just looking at it. For example, take MM. Its pretty small, just two letters. Each letter, however, equals 1,000 making the number 2,000. This example also illustrates the of a lack place value system in Roman Numerals. In Arabic numbers, ones are written with only one number, tens with two, etc. It can get confusing when you try to add. Turn to section III. Addition in your activity guide and use the links below to complete the activities and answer the questions.

Questions:

• What are some strategies that you could use to solve addition problems with Roman Numerals? [There is no link for this one--use your noggin!]
  
  
• Is it easier, harder, or about the same as adding Arabic numbers? Please explain your answer. [There is no link for this one either--try out some problems first.]

Activities:

• Try out this Roman Numeral calculator. Use it when you make your problems to see if they work.
  
  
• Take this Roman Numeral Addition quiz.
  
  
• Complete the addition problems in the activity guide.
  
  
• Create ten Roman Numeral addition problems of your own. Use the calculator to make sure they work. Please provide the answer.
  
  
• Make an addition quiz for your friends to see if they can add Roman Numerals too!

You should be getting pretty good at Roman Numerals! Let's give section IV. Subtraction a try!