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PLEASE REMEMBER!!
•You must TRY each problem!
•Underline important statements!
•Bubble as you go•DO YOUR BEST!!!
Order of Operations
P E M D A S
PLEASE EXCUSE MY DEAR AUNT SALLY
Parenthesis, Exponents, Multiply or Divide, Add or Subtract
Formula ChartTear it out! WRITE on it! USE IT!
Perimeter
Area
Volume
Surface Area
Metric Measurement
Customary
Measurement
Remember
SQUARE ROOT
Find what number can be multiplied by itself
AREA is squared
To the 2nd power
n x n
VOLUME is cubed
to the 3rd power
n x n x n
Dimensions• Perimeter and Circumference are 1 dimension
• Area is 2 dimensions
• Volume is 3 dimensions
• Scale factor that effects dimensions is multiplied to EACH dimension!
• New Perimeter is SF
• New Ares SF2
• New Volume SF3
PYTHAGOREAN THEOREM FORMULA (Right Triangle)
a and b are sides that form right anglec is the hypotenuse
TOTAL DEGREES OF A CIRCLEis 360 degrees
SUM OF THE INTERIOR ANGLES of a triangle is 180 degrees
C
360
180
a²+ b² = c²
ADD & SUBTRACT FRACTIONS
Write the problems verticallyFind a common denominator
Add numerators only
Reduce answers to lowest terms3 = 94 =122 = 83 =12 17 = 5 12 12
1
+
MULTIPLY FRACTIONSWrite horizontally
Numerator x Numerator Denominator x Denominator
Reduce to lowest terms
4 x 6 = 24 = 3 5 x 8 = 40 = 5
DIVIDE FRACTIONSWrite
horizontallyRemember there is no division
Find the reciprocal (flip it) of the 2nd fraction and multiply (KCF – Keep Change Flip)
Reduce to lowest terms
7 . 15 9 ‘ 12
7 x 12 = 54 = 39 x 15 = 135 = 5
When to Use Proportions
If in doubt, try proportions
Comparing two things • (miles/gallons)• ($ to feet)• (meters per second)
Rates/Unit RatesSimilar FiguresConverting Units of MeasurePercents %Probability Predictions
Part = %Whole 100
orIs = %Of 100
Percent of a Number
DISCOUNT = Rate(%) X Original price
FINAL COST = Original price - DISCOUNT
SALES TAX=Rate(%) x Price
TOTAL COST= Price + SALES TAX
CHANGE DECIMAL TO A PERCENT
Move the decimal 2 places to the right and add a % sign
(Dr. Pepper – DP)(Decimal to Percent)
.35 = 35%
.354 = 35.4%
MEAN
Your ‘mean’ teacher will average your grades.*Don’t use with an outlier
MEDIAN
The ‘middle’ number in an ordered list of numbers.*Use Median when you have an outlier
MODEThe number that appears the ‘most’.
Least to
Greatest!
INTEGER RULES
Adding Integers
Positive + Positive = Positive
Negative + Negative = Negative
Positive + Negative or
Negative + PositiveYou subtract and take the sign of the larger number.
4 + 5 = 9
-4 + -5 = -9
4 + -5 = -1
5 + -4 = 1
Subtracting Integers
Remember – Identify the sign of each number
Then you need to followthe addition rules for integers.
*remember two negatives swooshTo make a positive
-5 - (-7) -5 + 7 =
2
MULTIPLY & DIVIDING INTEGERS
Product/Quotient of like signs is positivePositive x Positive = Positive
Positive / Positive = Positive5 x 6 = 3030 6 = 5
Negative x Negative = Positive
Negative / Negative = Positive
-4 x -7 = 28
-28 -7 = 4 Product/Quotient of unlike signs is negative
Positive x Negative = NegativeNegative / Positive = Negative
6x-7 = -42
-42 7 = -6
REMEMBER THESE WORDS!
VERTICAL
HORIZONTAL
GOES UP
GOES DOWN
< less than
> greater than
Increase
Decrease
Concentrate on the problems you know how to solve first.
Key words are useful.
Leave the harder problems for last.Do not become frustrated.
Eliminate extra information!
Use process of elimination to help narrow your answer
choices. Choose the answer that is better than the others.
After working each problem circle the answer you have selected in your test booklet and BUBBLE
YOUR SCANTRON
When you are finished working allthe problems, double check your work.
Make sure you circled an answer in your test booklet and MARKED YOUR ANSWER SHEET.
Rework any problems you had concerns about.
•Last But Not Least --
***Mark your scantron very carefully!!!!***
• Make sure each test question has been marked on your answer document
•Try not to make any mistakes in marking
your scantron. If you have to erase be
sure to erase the mark completely.