The ancient Romans had a number system very different from the Arabic numbers we use today.They used the letters – I, V, X, L, C, D and M – as their basic digits. I = 1, V= 5, X = 10, L = 50, C = 100, D = 500 and M = 1000. Rules to convert Roman numerals to their Arabic equivalents: 1. When the number with the higher value is placed before the one with a lower value, both numbers are added. 2. When a smaller value is placed before a larger one, the smaller value is subtracted from the larger one and the result is added to the total sum.
Now that you know the rules, test your knowledge with this interesting Roman numerals worksheet for 4th grade. And when you’re done, check out the next worksheet in this series, Know your Roman Numerals 2.