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SHMS 7th Math Vocab2

SHMS 7th Grade Math Vocab 2

Algebraic expression An expression consisting of at least one variable and also consists of numbers and operations. Example 2x + 3
Term A number, a variable, or a product of a number and variable.
Coefficient The number part of a term that includes a variable. For example, 3 in the term 3x.
Constant A quantity having a fixed value that does not change or vary, such as a number. For example, 5 in the expression x + 5.
Equation A grouping of numbers, variables, and operations with an equal sign.
Inequality A grouping of numbers, variables, and operations with an inequality symbol such as <, >, ≤, and ≥.
Percent A part-to-whole ratio that has a number related to 100.
Ratio Describes the relationship between two quantities and can be written as a fraction, decimal, or percent.
Proportion An equation stating that two ratios are equivalent.
Scale factor A ratio between two sets of measurements.
Distributive Property Multiplies a factor that is outside of a set of parentheses with each addend within the parentheses to solve.
Commutative Property Allows for addends in an addition equation or factors in a multiplication equation to be moved or placed in a different order while solving.
Associative Property Allows for addends in addition equations or factors in multiplication equations to be grouped together into different pairs while solving.
Identity Property Allows for 0 to be added or 1 to be multiplied by any number and the number remains the same.
Inverse Property Allows a number to be added to the opposite number for a sum of zero. Also, a number multiplied by the reciprocal fraction has a product of 1.
Unit Rate A ratio that has a number related to 1.
Constant of Proportionality Represented by the value of the ratio (k) between y and x as y =kx.
Created by: hbogue