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Adding Egyptian Numerals
Last updated at November 24, 2025 by Teachoo
Class 8 (Ganita Prakash & Old NCERT)
Chapter 3 Class 8 - A Story of Numbers (Ganita Prakash)
- Introduction
- The Mechanism of Counting
- Some Early Number Systems
- Roman Numerals
- Figure it out - Page 60, 61
- Egyptian Number System
- Variations on the Egyptian System and the Notion of Base
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Adding Egyptian Numerals
- Multiplying Egyptian Numerals
- Distributive Law – For Egyptian Numerals
- Abacus that Makes Use of the Decimal System
- Shortcomings of the Egyptian System
- Figure it out - Page 69
- Mesopotamian Number System
- Mayan Number System
- Chinese Number System
- Hindu Number System
- Evolution of Ideas in Number Representation
- Figure it out - Page 80
Transcript
Adding Egyptian NumeralsLet’s do an example Find sum of Now, to add this we put them one below another and group them Thus, our sum is Sum = Similarity to our Hindu Number System Addition We note that Left Side (Modern): Adding 47 + 56.7 + 6 = 13. We keep the 3 and "carry" the 10 (represented as a 1 on top). This is the same as trading 10 Strokes for 1 Arch! Right Side (Base-5):They have 3 Triangles and 4 Triangles. Total = 7.Since it's Base-5, they take 5 Triangles and swap them for 1 Square. They are left with 2 Triangles. Also, this is much simpler to do as compared to do than Adding Roman Numerals
