Order of Operations with Integers SWBAT simplify expressions involving integers using the order of operations.

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Presentation transcript:

Order of Operations with Integers SWBAT simplify expressions involving integers using the order of operations

Review – Order of Operations P E M D A S Parenthesis Any grouping symbol, ( ), [ ], { } Exponents Repeated Multiplication 2 3 Multiplication and Division From left to right Addition and Subtraction From left to right

Integer rules Adding Adding Same signs – add the digits and keep the sign Same signs – add the digits and keep the sign Different signs – subtract the absolute values and keep the sign of the number with the larger absolute value Different signs – subtract the absolute values and keep the sign of the number with the larger absolute value Subtracting Subtracting Rewrite as addition by using the opposite of the subtrahend Rewrite as addition by using the opposite of the subtrahend Multiplying/Dividing Multiplying/Dividing Even number of negatives – answer is positive Even number of negatives – answer is positive Odd number of negatives – answer is negative Odd number of negatives – answer is negative How do you think integers will affect order of operations? How do you think integers will affect order of operations? Keep the same order, and remember your rules Keep the same order, and remember your rules

Examples -4[6 + (8 – 5) 2 ] -4[6 + (8 – 5) 2 ] 4 x {[6 – (-4)] 2 x 15} + (-5) 4 x {[6 – (-4)] 2 x 15} + (-5) 16 – (-279) ÷ – (-279) ÷ – 4 (1 + 1) – 4 (1 + 1) 2 24( ) – (-21) – 38 x 3 24( ) – (-21) – 38 x 3

Do the Try these problems on your paper -62 – 84 ÷ – 84 ÷ (-84) ÷ (-84) ÷ · ( ) ÷ · ( ) ÷ · 2 ÷ · 2 ÷ ÷ ÷ (-175) – 56 ÷ (-175) ÷ (-175) · -16 – 36 2 ÷ · ÷ · ÷ ÷

Exit Ticket On a scrap paper solve the following expression using the order of operations. On a scrap paper solve the following expression using the order of operations. You may not leave until you have completed and handed in the following problem. You may not leave until you have completed and handed in the following problem. Watch your signs and show your steps. Watch your signs and show your steps. 7 – (-9 – 5) · 22 7 – (-9 – 5) · 22