Roman numerals use letters that represent certain numbers and are then used to make up all of the other numbers.

The Roman numerals that your child is expected to be familiar with are seen to the right.

Some numbers are added together to produce higher numbers.

For example 3 = 1 + 1 + 1 = III in Roman numerals and 11 = 10 + 1 = XI in Roman numerals.

Other numbers are represented as subtractions if they are 9s or 4s.

For example 19 = 10 + 10 - 1 = IXX.

Commonly years are represented by Roman numerals so it is important your child is comfortable representing higher numbers in Roman numerals.