Objectives
1. Understand and use the Egyptian System.
2. Understand and use the Roman system.
3. Understand and use the Chinese system.
4. Understand and use the Ionic Greek system.
Key TermsNumber: tell us how many objects
we are counting.Numeral: a symbol which
represents a number.System of Numeration: a set of
basic numerals and rules for combining them to represent numbers.
Hindu-Arabic Numerals: a system of writing numerals that were invented in India and brought to Europe by Arabs, which we use today.
Hindu-Arabic SystemAn important characteristic of our
Hindu-Arabic system is that we can write the numeral for any number, large or small, using only ten symbols.
The ten symbols are as follows:0, 1, 2, 3, 4, 5, 6, 7, 8, and 9.
These symbols are called digits.
Egyptian Hieroglyphic System
Number Power of 10
Symbol Name
1 100 Stroke/Staff
10 101 Heel bone
100 102 Scroll
1,000 103 Lotus Flower
10,000 104 Pointing Finger
100,000 105 Fish/Tadpole
1,000,000 106 Astonished Person
Section 4.1 Assignment IClasswork:
◦TB pg. 204/1 – 24 All Must write problem and show ALL work to
receive credit for this assignment.
Egyptian Method of Doubling
Power of 2 Value Times 21
20 1 2121 2 21 + 21 = 4222 4 42 + 42 = 8423 8 84 + 84 = 16824 16 168 + 168 = 33625 32 336 + 336 = 67226 64 672 + 672 = 1344
Section 4.1 Assignment IIClasswork:
◦TB pg. 205/ Must write problem and show ALL work
to receive credit for this assignment.
NOTE:The Chinese did not have a
symbol for the zero in the traditional notation, and they did not use the concept of place value. So they had to specify whether they were talking about 6 tens, 6 hundreds, or 6 thousands, etc.
This required an extra symbol.