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## Math 115- Midterm One

by: Morgan Gregory

3

0

4

# Math 115- Midterm One MA115

Morgan Gregory
Montgomery College
GPA 3.5

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These notes cover the first few weeks of class
COURSE
History of Math
PROF.
Dr.Amy Shell-Gellasch
TYPE
Study Guide
PAGES
4
WORDS
CONCEPTS
Math, Anthro, Anthropology
KARMA
50 ?

## Popular in Math

This 4 page Study Guide was uploaded by Morgan Gregory on Saturday September 24, 2016. The Study Guide belongs to MA115 at Montgomery County Community College taught by Dr.Amy Shell-Gellasch in Fall 2016. Since its upload, it has received 3 views. For similar materials see History of Math in Math at Montgomery County Community College.

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Date Created: 09/24/16
Midterm Review Roman Roman numerals are a ​non-positional base-10 syst​ nd numerals are written left to right, large to small. Roman numerals have additive and subtractive properties. Additive- placing a smaller numeral after a larger numeral adds these together Subtractive- placing a smaller numeral before a larger numeral subtracts it. Egyptian The Egyptian number system is a non positional base-10 system that used an additive property. Additionally, numberals would be grouped in fours, in order to make reading easier. Egyptians wrote in right to left and used glyphs. Babylonian The Babylonian number system used a cuneiform scrript, which comes from the latin word cuneus, meaning wedge or wedge shaped. This is because they used a reed pen. This number system is read left to right, and relies on a base-60 system, over a base 10 system. Myan The myan number system used a series of dot-and-bar numerals written vertically with place value increasing from bottom to top and in any place value five dots are replaced by one bar. The Myans used a placeholder that allowed their numbers to be expressed unambiguously. Their system used a modified base twenty over a base five If one takes the unit to be a tun, with kin and unial being fractions of the tun-- 1 kin=1/360 tun and 1 uninal=1/18 tun then the myan system is a true vigesimal system

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