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Related Flashcards
Cards In This Set
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Hindu-Arabic Numeration Form
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 -base 10-place values are power of 10 (expanded)-method used today[developed the concept zero as a placeholder] |
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Base Ten Blocks
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 -the Hindu-Arabic concrete model |
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Tally Numeration Form
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 -used for simple, small counting-slash mark (/) represents grouping[shortest time frame counting method] |
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Egyptian Numeration Form
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 -play on Hindu-Arabic-symbols represent base 10 values[expanded the Tally Method Base 10] |
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Babylonian Numeration Form
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 -use Base 60 counting-put spaces between to represent the powers of 60-didn't have zero as place holder (added new symbol)[developed same time as Egyptians] |
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Mayan Numeration Form
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 -uses base 20-vertically based-Level 1=1; Level 2=20; Level 3=18x20; Level 4=18x20^2... |
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Roman Numeration Form
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 -uses base 10- when a number decrease then increases, subtract-number must be in chart to subtract[subtraction property] |
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Base 5 Numeration Form
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-based on hands a fingers (you have 4 fingers and 1 thumb)[Ex. 21 five--21=hand and five=fingers--is 11]
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Converting different bases to Hindu-Arabic Base 10 Numeration Form
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-write out our value in expanded form-multiply all the exponents-add
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Base 2 (or Binary)
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 -important because of its use in computers-one of the two digits is represented by the presence of an electrical signal and the other by the absence of an electrical signal |
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Converting Hindu-Arabic ten to different bases.
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-look for greatest exponent less than value-determine how many groups in the value-continue until you reach n* power
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Base 12 Numeration Form
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-based on dozens (12's)-T is groups of 10-E is groups of 11[Write in expanded form first]
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