1. A Brand New Set of Number Symbols To heck with that dumb ‘ol 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12…

3. New Number Symbols

10. Are our number symbols any more or less abstract? 9 10 11 12 56785678 12341234

11. New Number Symbols

16. The Hindu-Arabic Numeration System Whoa… you didn’t even know it was called that, did you?

17. Ancient Egyptian Additive System

18. 100,000 + 10,000 + 5,000 + 600 + 30 +9 1 1 5639

19. Ancient Egyptian Additive System 115,639

20. Ancient Chinese Multiplicative System

22. Hindu-Arabic Numeration System The Hindu-Arabic Numeration System is additive and multiplicative. Place values: thousand hundred ten one Cardinal Values: 4 6 8 7 4 × 1000 + 6 × 100 + 8 × 10 + 7 × 1 4000 + 600 + 80 + 7 4687

23. John’s Top 5 Reasons the Hindu-Arabic Numeration System is COOL! 1. Zero! 2. Cardinal value… 3. Place value… 4. As many symbols as the base… 5. Algorithms are simple…

24. Hindu-Arabic Numeration System The Hindu-Arabic numeration system evolved around A.D. 800. It is basically the numeration system that is widely used today. The Hindu-Arabic Numeration System typically uses 10 digits or symbols that can be used in combination to represent all possible numbers. The digits typically are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

25. Hindu-Arabic Numeration System The Hindu-Arabic Numeration System typically groups by tens. In the Hindu-Arabic numeration system,typically: ten ones are replaced by one ten, ten tens are replaced by one hundred, ten hundreds are replaced by one thousand, ten one thousands are replaced by 10 thousands, and so forth...

26. Hindu-Arabic Numeration System The Hindu-Arabic Numeration System uses a place value and cardinal value, starting from right to left. the first number represents how many ones, the second number represents how many tens, the third number represents how many hundreds, the fourth number represents how many thousands, and so on... For example, in the numeral 4687, there are 7 ones, 8 tens, 6 hundreds, and 4 thousands.

27. The Hindu-Arabic Numeration System So, now you know…