WARMUP

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WARMUP

• 1. 2 2/3 3 1/2 4 3/4
• 2. 37.5 x 16.2
• 3. 14.5 125.5 12.2
• 4. 3 1/2 x 4 1/3

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ABSOLUTE VALUE

• CHAPATER 1-10

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OK MR. SKRTICH EXPLAIN THIS ABSOLUTE VALUE STUFF
ABSOLUTE VALUE
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Adding Integers
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The Rules for adding integers are as follows 1.
If the numbers have the same signs, add them and
keep that sign. 2. If they have opposite signs,
subtract and take the sign of the larger number.
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Adding Integers
Half the addition problems are easy!
If both numbers are positive, just add them like
you did in first grade!
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If both numbers are negative, add them the same
way. Just remember that the sum will be
__________also!
negative
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The other half of the problems are a little
trickier!
If one of the numbers is positive and the other
is negative.
Remember, if a number has no sign, it is
positive.
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So if you are adding...
First, think of the numbers 9 and 5
Second, calculate the _________ between 9 and 5.
difference
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Give the sum the same sign as the LARGER absolute
value.
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Sample Problems
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It is -1oC
4 3 2 1 0 -1 -2 -3

• The temperature rises by 2 degrees

• What temperature is it now?

1oC
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-1510
-5
14
-1520
5
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Adding a positive and a negative number is like
having two plays in football. One where you gain
yardage and one where you lose yardage. The
answer is the amount of change from the two plays
combined.
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The Jacksonville Jaguars lose 4 yards on the
first play and gain 6 yards on their second play.
What is the net gain?
2 yards!!
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ADDING INTEGERSLIKE SIGNS

• 3 ( 3)
• - 3 ( - 3)
• 9 ( 9)
• - 9 ( - 9)
• 2 ( 2)
• - 2 ( - 2 )

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ADDING INTEGERSLIKE SIGNS

• 1 3 ( 3)
• - 13 ( - 3)
• 19 ( 9)
• - 19 ( - 9)
• 12 ( 2)
• - 12 ( - 2 )

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ADDING INTEGERSUNLIKE SIGNS

• 3 ( - 3)
• - 3 ( 3)
• 9 ( - 9)
• - 9 ( 9)
• 2 ( - 2)
• - 2 ( 2 )

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ADDING INTEGERSUNLIKE SIGNS

• 13 ( - 3)
• - 13 ( 3)
• 19 ( - 9)
• - 19 ( 9)
• 12 ( - 2)
• - 12 ( 2 )

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ORDER OF OPERATIONS

• CHAPATER 1-10

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ORDER OF OPERATIONS

• ORDER OF OPERATIONS
• P (PLEASE)
• E (EXCUSE)
• M (MY)
• D (DEAR)
• A (AUNT)
• S (SAMANTHA)

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ORDER OF OPERATIONS
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ORDER OF OPERATIONS
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ORDER OF OPERATIONS
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ORDER OF OPERATIONS
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ORDER OF OPERATIONS

• ORDER OF OPERATIONS
• P (PLEASE)
• E (EXCUSE)
• M (MY)
• D (DEAR)
• A (AUNT)
• S (SARA)

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ORDER OF OPERATIONS

• 45 2 x 15
• 45 30
• 45 30
• 15

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ORDER OF OPERATIONS 2 EXAMPLES

• 9 x 3 2
• 27 2
• 29
• 25 - 5 x 2 3
• 25 10 3
• 15 3
• 18

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ORDER OF OPERATIONS

• ORDER OF OPERATIONS
• P (PLEASE)
• E (EXCUSE)
• M (MY)
• D (DEAR)
• A (AUNT)
• S (SAMANTHA)

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MAC DADDY SUPER HARD PROBLEM
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• 5(7 4) ( 8 x 4)
• 5(11) (8 x 4)
• 5(11) 32
• 55 32
• 23

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ANOTHER MAC DADDY SUPER HARD PROBLEM YOU DO THE
MATH
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• (5 14) - 2 ( 7 )
• (19) 2 (7)
• (19) 14
• 5

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ANOTHER MAC DADDY SUPER HARD PROBLEM YOU DO THE
MATH
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DO THIS PROBLEM

• (9 x 3) (2 x 5) (4 5) (3 12) - 2

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ANOTHER MAC DADDY SUPER HARD PROBLEM YOU DO THE
MATH
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DO THIS PROBLEM

• (9 x 3)2 (2 x 5)2 (4 5)2

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TOPIC

• EQUATIONS

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EQUATIONS

• MATHEMATICS
• MR. SKRTICHS CLASS

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EQUATIONS - REVIEW

• EQUATIONS
• AN EQUATIONS IS A STATEMENT THAT TWO NUMBERS OR
  TWO EXPRESSIONS ARE EQUAL.
• THERE ARE TWO SIDES TO ANY EQUATION
• AN EQUATIONS ALWAYS HAS AN SIGN.
• WE LOOK FOR SOLUTIONS TO EQUATIONS

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EXAMPLES OF EQUATIONS

• X 1 6
• 2K - 5 156
• 5 R 17
• N - 8 16
• 24 - N 5 34

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WHAT IS A VARIABLE?

• A SYMBOL THAT REPRESENTS A NUMBER.

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MR. SKRTICHS WAY OF DOING EQUATIONS

• THERE IS AN ALTERNATIVE WORLD ON EACH SIDE OF
  THE SIGN.

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MR. SKRTICHS WAY OF DOING EQUATIONS

• THERE IS AN ALTERNATIVE WORLD ON EACH SIDE OF
  THE SIGN.
• WHERE THE SIGN IS , DRAW A FENCE.

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MR. SKRTICHS WAY OF DOING EQUATIONS

• THERE IS AN ALTERNATIVE WORLD ON EACH SIDE OF
  THE SIGN.
• WHERE THE SIGN IS , DRAW A FENCE.
• EVERYTHING MUST BE BALANCED.

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MR. SKRTICHS WAY OF DOING EQUATIONS

• THERE IS AN ALTERNATIVE WORLD ON EACH SIDE OF
  THE SIGN.
• WHERE THE SIGN IS , DRAW A FENCE.
• EVERYTHING MUST BE BALANCED.
• THE OBJECT IS TO SOLVE FOR THE VARIABLE.

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SOLVE G 3 93

• G 3 93
• G 3 - 3 93 - 3
• G 0 90
• G 90
• CHECK
• G 3 93
• 90 3 93
• 93 93

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SOLVE 45 R - 9

• 45 R - 9
• 45 9 R - 9 9
• 54 R 0
• 54 R
• CHECK
• 45 R - 9
• 45 54 - 9
• 45 45

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Ok. Lets you work this one out!

• R 16 32

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YOU DO THE MATH
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YOU DO THE MATH
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REVIEW 1SOLVE THE EQUATION325 X 23
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REVIEW 2SOLVE THE EQUATION325 R 123
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YOU DO THE MATH
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REVIEW 12SOLVE THE EQUATIONW 95 924
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LETS REVIEW

• WHAT DO WE COVER TODAY IN THIS REVIEW?

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HOMEWORK

• HOMEWORK
• RULE 1 READ AND WRITE THE PROBLEM.
• RULE 2 READ AND WRITE THE PROBLEM
• RULE 3 READ AND WRITE THE PROBLEM.
• SHOW ALL WORK

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HOMEWORK PAGE 684 DO 1-41(EVEN)PAGE 685 DO
1-25 (EVEN)

• IF YOU CAN DO THESE YOU ARE A SUPER MATHEMATICIAN