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# PC_Terms_Chapters01

accuracy the correctness of a number in its representation of a given value
Arabic numbers a numbering system that uses numeric symbols to indicate numbers, fractions, and decimals; uses the numerals 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
common denominator a number into which each of the unlike denominators of two or more fractions can be divided evenly
complex fraction a fraction in which both the numerator and the denominator are fractions
decimal a fraction value in which the denominator is 10 or some power of 10
denominator the number in the bottom part of a fraction
fraction a portion of a whole that is represented as a ratio
improper fraction a fraction with a value greater than 1 (the value of the numerator is larger than the value of the denominator)
leading zero a zero that is placed to the left of the decimal point, in the ones place, in a number that is less than one and is being represented by a decimal value
lowest known place value the last digit on the right of a written numeral
military time a system of time based on a 24-hour format
mixed number a whole number and a fraction
numerator the number in the top part of a fraction
place value the location of a numeral in a string of numbers that describes the numeral's relationship to the decimal point
product the result of multiplying one number by another
proper fraction a fraction with a value of less than 1 (the value of the numerator is smaller than the value of the denominator)
quotient the result of dividing one number by another
Roman numerals a numbering system that uses alphabetic symbols to indicate a quantity; uses the letters I, V, and X to represent 1, 5, and 10, respectively
scientific notation a method used to write numbers that have a very large or very small numerical value; uses "x 10" with an exponent
significant figures the figures in a numeral that are known values and have not been rounded or estimated in the process of mathematical calculation, plus the digit in the lowest place value, which is approximate
standard time a system of time that relates to the natural day and is based on a 12-hour format
sum the result of adding two or more numbers together
trailing zero a zero that appears at the end of a decimal string and is not needed except when considered significant
Created by: softcrylic