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# 7th Grade SOL Math Vocabulary, Part One

Properties and General Terms

AB
Additive Identity PropertyThe sum of any real number and zero is equal to the given real number
Additive Inverse PropertyThe sum of a number and its additive inverses always equals zero
Associative PropertyRegrouping the addends does not change the sum
Associative Propertyregrouping the factors does not change the product
Commutative PropertyChanging the order of the addends does not change the sum
Commutative Propertychanging the order of the factors does not change the product
Distributive PropertyThe product of a number and the sum (or difference) of two other numbers equals the sum (or difference) of the products of the number and each other number
Multiplicative Inverse PropertyThe product of a number and its multiplicative inverse (or reciprocal) always equals one.
Multiplicative Property of ZeroThe product of any real number and zero is zero
Multiplicative Identity PropertyThe product of any real number and one is equal to the given real number
Multiplicative Identity Propertyone (1) is the multiplicative identity element
BaseThe number that is multiplied
EquationA mathematical sentence that states that two expressions are equal.
Experimental ProbabilityDetermined by carrying out a simulation or an experiment; (number of times desired outcomes occur divided by the number of trials in the experiment).
ExponentRepresents the number of times the base is used as a factor; a name for a number.
ExpressionA phrase that has no equal sign; a name for a number.
FunctionA rule that pairs exactly one element of a set with only one element of another set.
Fundamental Counting PrincipleA computational procedure to determine the number of possible arrangements of several objects; the product of the number of ways each object can be chosen individually.
Identity ElementNumbers that combine with other numbers without changing the other numbers
InequalityA mathematical sentence that states that one quantity is less than (or greater than) another quantity.
IntegersThe set of whole numbers and their opposites (e.g., … -3, -2, -1, 0, 1, 2, 3, …).
InversesNumbers that combine with other numbers and result in identity elements
One-Step InequalityAn inequality that requires the use of one operation to solve
One-Step EquationAn equation that requires the use of one operation to solve
PointLocated by its distances from two intersecting perpendicular number lines (x and y-axis).
PowerRepeated multiplication of a number
RateA special ratio that always has a denominator of 1
Sale PriceDetermined by subtracting the discount from the original price of the merchandise
ScattergramIllustrates the relationship between two sets of data; consists of points
Scientific NotationUsed to represent very large or very small numbers; the product of two factors – a decimal greater than or equal to 1 but less than 10, and a power of 10
Simple InterestDetermined by multiplying the principal by the rate of interest by the number of years on the loan or investment
Theoretical ProbabilityThe expected probability; number of possible favorable outcomes divided by the total number of possible outcomes
Total CostThe sum of the original cost and the interest paid
Total ValueThe sum of the original investment and the interest earned
Variable ExpressionAn expression that contains a variable
Verbal ExpressionA word phrase
Verbal SentenceA complete word statement.

 Mrs. Hilling Library Teacher Marshall Middle School The Plains, VA