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Unit 1 Vocab

TermDefinition
Additive Inverse Two numbers whose sum is 0 are additive inverses on a number line
Multiplicative Inverse Two numbers whose product is 1 are multiplicative inverses of one another.
Absolute Value The distance of a number from 0. Since absolute value measures distance, the value is always positive. The absolute value symbol is a pair of vertical lines: | |. For example, | -4| = 4 is read, β€œThe absolute value of -4 equals 4.”
Integers The set of whole numbers and their opposites and zero. Also, a number expressible in the form of a or –a for some whole number a.
Long Division the mathematical method for dividing large numbers into multiple smaller groups or parts.
Natural Numbers the positive integers (whole numbers) 1, 2, 3, etc., and sometimes zero as well.
Zero Pairs A pair of numbers whose sum is zero. In the number line image below, numbers connected with a colored bracket are zero pairs. Visually, zero pairs can also be represented with two-color counters as seen below the number line.
Negative Numbers A real quantity having a value less than zero ( < 0 )
Opposite Numbers A number with the same absolute value as a given number, but with a different sign.
Positive Numbers A real quantity having a value more than zero (>0)
Rational Numbers A number expressible in the form π‘Ž/𝑏 or βˆ’π‘Ž/𝑏 for some fraction π‘Ž/𝑏. The rational numbers include the integers.
Repeating decimal A number whose decimal representation eventually becomes periodic (i.e., the same sequence of digits repeats indefinitely. The repeating portion of a decimal expansion is conventionally denoted with a vinculum ( β€Ύ ). For example, 1/3=0.3333 … = 0. 3ΰ΄€.
Terminating decimal. A decimal with a finite number of digits. Also, if a decimal’s repeating digit is zero, the decimal is called a terminating decimal. Examples of terminating decimals can be seen below.
Created by: user-1707982
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