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Unit 3 Part 2

Unit 3 Basic Skills Part 2

DefinitionTerm
a number sentence using numbers and/or variables together with operations expression
a number sentence that shows that the values on both sides of the equal sign are equal equation
to find the value of an expression evaluate
replacing a variable with a given value in order to evaluate an expression or equation substitution
a symbol or letter that represents one or more numbers variable
a numerical factor multiplied by a variable (the 3 in 3n) coefficient
a number with a value that is always the same; the part that does not change constant
the two sides of an equation will remain balanced when the same amount is added, subtracted, multiplied, or divided on both sides of the equation Properties of Equality
a number, variable, product, or quotient in an expression separated by a (+) or (-) sign term
a number that when substituted for a variable makes the equation true solution
two operations that can be used to undo each other such as addition/subtraction and multiplication/division inverse operations
the inverse of a fraction (found by switching the numerator and denominator) reciprocal
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