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Chapter One History of Numbers

Across
Base 2 numbering system
Science of structure and order
A base 60 numeric system
The top part of a fraction
Developed a 20 base number system
Sometimes called natural numbers
Has a density 62.4 lbs/cubicfoot
Ancient Chinese counting tool
A section in Applied Mathematics
Down
Professional society
Term derived from Arabic meaning completion or reunion of broken parts
The bootom part of a fraction
Branch of mathematics that deals with measurement
Can still be found on the face of modern clocks
20 base number system
Earliest form of numbers
Area=0.7854xdiameter squared
Work should be to the nearest 1/6th of an inch
A number that has no fractional part, and no digits after the decimal point.
Father of Greek mathematics