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Chapter One History of Numbers

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