Measures of Central Tendency

Mean

Median

Mode

Mean - Average

Add and divide by number of data

Median – middle number

-Order least to greatest

-Find middle number

Mode – MOST often

number that occurs most often

Range

-Line them up

-Subtract least from greatest

READ

Order of OperationsP – Parenthesis ( ) First

E – Exponents Second

M/D OR D/M – Multiplication & Division whichever comes from….read a book from left to right

A/S OR S/A – Addition & or Subtraction whichever comes first….read a book from left to right

Integers Positive

Gained 10 yards, +10 Earned 5 dollars, +5

NegativeI loss 8 points on my test. -8

The temperature fell 7 degrees. -7

READ

Coordinate Plane

Quadrant I

Quadrant IV

Quadrant II

Quadrant III

x axisy axis

Plotting Points

(+x,+y)

(+x,-y)

(-x,+y)

(-x,-y)

y axis x axis

run (x, y) jumpStart at (0,0)

Run before jump

READ

Proportional Relationships

involve multiplication or division by a specific number, never addition or subtraction.

Multiply cross products

(butterfly method)

Solving Proportions

LABELS FIRST!!!!!

Find Relationship

Simplify, then find relationship

Bat and Ball -Multiply numbers in the bat -Divide number in the ball

Proportions

carsxpeople

carpeople

2013

carscar

xpeoplepeople

2013

xpeoplecars

carpeople 201

3

OK

OK

NO!!!

Read

GCF LCMVertical T-chart with factor pairs.

The first factor pair is always 1 x itself.

Horizontal t-chart.

List multiples.

For finding when an even will happen AGAIN or at the SAME TIME.

REA

D

Adding & Subtracting Fractions

•Need common denominator,

• Add/subtract the numerators

• Leave denominator alone!

•Simplify/reduce

Adding & Subtracting Decimals

• Line up the decimals and bring down the decimal in your answer.

• Check if your answer makes sense.

5.09 3.98

+3.1 - 2.8

Read

Fractions to Decimals

Top dog in the house!! DIVIDE

5

3 356.00.35

300

53

0.6

Decimals to Percents

DP Move the decimal two places to

the right.

To Convert a Percent to Decimal, move the decimal two places to the left.

Common Equivalents

%7575.0

%6666.0

%505.02

1

%3333.0

%2525.0

4

3

3

2

3

2

3

1

3

1

4

1

Read

Converting UNITSCustomary System Metric System

Use Formula chart.

Set up proportions with labels.

KHDBDCM

BASE UNITS- Meters- Liters- Grams

READ andUSE YOUR

FORMULA CHART !!

Take your time!

Continue to bubble as you answer questions until time ends.

Highlighters are in teacher’s bucket. Highlight question being ASKED!!!

Read Carefully

Take Your Time

Relax

Think Positively

You’ve Got This…

You are smart!