Objective - To subtract integers. 1 = = = = = = = = = = +1 Odd # of Negatives = Negative Even # of Negatives = Positive Multiple Signed Numbers

Combine the following integers. 1) = 2) = 3) = 4) = 5) = 6) = 7) = 8) = 9) = 10) = 11) = 12) = 13) = 14) =

Identify the property shown below. 1) 7 + ( ) = ( ) + 5 2) 3) 4) 5) = ) = 12 7) Assoc. Prop. of Add. Mult. Prop. of Zero Comm. Prop. of Mult. Comm. Prop. of Add. Identity Prop. of Add. Identity Prop. of Mult.

Closure Property A set of numbers is said to be ‘closed’ if the numbers produced under a given operation are also elements of the set. Tell whether the whole numbers are closed under the given operation. If not, give a counterexample. 1) Addition 2) Subtraction 3) Multiplication 4) Division Closed = = 6 Not Closed = - 2 Closed Not Closed 2 8 = 0. 25

1) Addition 2) Subtraction 3) Multiplication 4) Division Closed = = 4 Closed = 12 Closed Not Closed A set of numbers is said to be ‘closed’ if the numbers produced under a given operation are also elements of the set. Tell whether the integers are closed under the given operation. If not, give a counterexample. Closure Property 2 8 = 0. 25

a product or quotient involving numbers and/or variables. Terms are separated in expressions by addition or subtraction. Numerical terms Examples: Variable terms Coefficient - The numeral in a variable term usually preceding the variable. Examples: 3x -2y m 1 Term-

Identify the terms in the expressions below. 1) 2) 3)

Evaluate the functions below when x = -3, -2, -1, 0, 1 1) y = 2x - 3 2) y = 7 - x 3) y = -x - 4 x y x y x y