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6th Grade

Chapter 2

QuestionAnswer
term A number in a pattern.
conjecture A prediction that suggests what can be expected to happen.
numerical expression An expression with only numbers and operation.
algebraic expression A mathmathemtical phrase that uses variables, numbers, and operations.
variable A letter that stands for a number.
evaluate Replace each variable with a number. Then follow the order of operations.
equation A mathematical sentence with an equal sign.
open sentence An equation with one or more variables.
solution Is any value or values that make an equation or inequality true.
inverse operation Are operations that undo each other.
Subtraction Property of Equality States that if the same number is subtracted from each side of an equation, the results are equal.
Addition Property of Equality States that if the same value is added to each side of an equation, the results are equal.
Division Property of Equality States that if both sides of an equation are divided by the same nonzero number, the results are equal.
Multiplication Property of Equality States that if each side of an equation is multiplied by the same number, the results are equal.
Distributive Property How multiplication affects addition or subtraction: 3 x (7+5) = (3x7) + (3x5)
Created by: palsm