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Chapter 2

Commutative Property Order Does Not Matter Addition- 2+3=3+2 =5 Multiplication- 2(3)=(3)2=6
Associative Property Grouping does not matter Addition- 2+(3+4)=(2+3)+4=9 Multiplication- 2(3x4)=(2x3)4=24
Identity Property The number multiplied or added which allows me to get the number back again Addition- 2+0=2 Multiplication- 2x1=2
Distributive Property 4(3)+4(5) or 4(3+5)
Term Any number or variable connected by the addition or subtracting symbol
Like Terms More than one term or terms that have the same variables and powers.
Variable Terms Any term that contains a variable parts of a variable term- Coefficient, 4x
Numeric Term Any term made up of an only numbers
Constant Terms that contain only numbers
Open Sentence Equation that contains a variable
Inequality A mathematical statement that includes a less than, or greater than symbol
Open Circle Means not included in our solution, not equal to, >,<
Closed Circle Means the number is included in our solution, = to
Solving Equations 1. Identify Variable 2. Write Equation 3. Solve 4. Sentence
Solving Inequalities Must remember to reverse the inequality sign when multiplying or dividing by a negative number
Created by: levinskijacob