1. Measures of Central Tendency
Mean – average, add and divide by number of numbers
Median – middle number, order from least to greatest & find middle number
Mode – most, number that occurs most often

2. Choosing Measures of Central Tendency
Mean – best choice when there are no extreme values
Median - best choice if there are extreme values
Mode - best for identifying most characteristic value

3. PEMDAS PLEASE – Parenthesis () First EXCUSE – Exponents Second
MY – Multiplication and
DEAR – Division from left to right
AUNT – Addition and
SALLY – Subtraction from left to right

4. Look at the relationship of the top number to the bottom number
TABLES AND PATTERNS
Look at the relationship of the top number to the bottom number
Place in Sequence 1 2 3 4 n 7 10
3n-2
Term
This Pattern: Multiply by 3 then subtract 2

5. Coordinate Plane
Quadrant II
y axis
Quadrant I
x axis
Quadrant III
Quadrant IV

6. Start at (0,0), move left or right, then up or down
Plotting Points
run (x, y) jump
Start at (0,0), move left or right, then up or down
(-x,+y)
(+x,+y)
y axis
x axis
(-x,-y)
(+x,-y)

7. 1039 = 1.039 × 10³ 0.0056 = 5.6 × 10 ³ Scientific Notation
Large number, positive exponent
Small number, negative exponent
= 5.6 × 10 ³

8. Scatter Plots Positive Trend/ Correlation Negative Trend/ Correlation
No Trend/ Correlation

9. Exponents
Good
2³ = 2 × 2 × 2 = 8
2³ = 2 × 3 = 6
No!
Bad

10. % Percent Problems Part Whole 100 % % is of 100 Original 100
Difference % of
100
Original
100

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

12. Graphs of Proportional Relationships are straight lines and pass through the origin (0,0)
Not Proportional

13. Pythagorean Theorem & Special Case Right Triangles13 5 3 5
hypotenuse
leg
leg 4 12
a² + b² = c²
3² + 4² = 5²
a² + b² = c²
5² + 12² = 13²
Look for special case right triangles & multiples like 6,8,10 or 30, 40, 50.

14. A solid figure is named after the shape of its base(s).
Naming Solid Figures
A solid figure is named after the shape of its base(s).
Base
Base
Base
Base
Triangular Prism
Square Pyramid
Rectangular Prism
Triangular Pyramid

15. Volume Formulas
V = Bh
“B” represents the AREA of the base, not the measurement of the base.
Here, the area of the base (triangle) is 10, not 4, so substitute 10 for B.
V= 10h 5 7 4

16. More on Volume Formulas
V = Bh
“h” represents the height of the prism (measured between bases), not the height of the base.
Here, the height of the prism is 7, not 5, so substitute 7 for h.
V= (10)(7) = 20 u³ 5 7 4

17. Similar Shapes Same shape, different size. All angles congruent.
Side lengths are proportional (multiplied or divided by the same number) 12 4 6 2

18. Similar figures have exactly the same shape but may be different sizes
Similar figures have exactly the same shape but may be different sizes. Their corresponding sides are proportional, and their corresponding angles are congruent.
10 in
5 in
3 in
6 in

19. Scale Factors
To find the scale factor of similar figures or a real car and a model car, compare lengths. Put the 2nd number over the 1st and simplify.
10 in
5 in
3 in
6 in

20. Area Factors and Volume Factors
If the problem involves similar figures and AREA, find the scale factor 1st, then square it to get the AREA FACTOR
If the problem involves similar figures and VOLUME, find the scale factor 1st, then square it to get the VOLUME FACTOR

21. Probability # of Desired Outcomes # of Total Possible Outcomes
To find the probability of more than one event , multiply the probabilities together.
Theoretical Probability – what ought to happen.
Experimental Probability – what really happens/happened.

22. Multiplying Fractions
Ain’t no problem Top x top & Bottom x Bottom
Remember to Reduce!!!

23. Flip the 2nd and Multiply
Dividing Fractions
Don’t ask why,
Flip the 2nd and Multiply
Remember to Reduce!!!

24. Adding & Subtracting Fractions
Must have a common denominator,
then add or subtract the numerators and simplify/reduce.

25. Proportions OK OK
NO!!!

26. Top dog in the house!! DIVIDE
Fractions to Decimals
Top dog in the house!! DIVIDE
0.6

27. Common Equivalents

28. Griddable Responses
7 3
7 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 7 7 7 7 8 8 8 8 8 8 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9 9 9 9 9 9

29. More on Griddables
Work these problems very carefully. Without answer choices as a way to check yourself, it is important to take your time and be accurate.
Write your answer using the correct place values. Then fill in the correct bubble in each column.

30. A Plan for Each Problem
Carefully read through the problem for main idea.
Find and hi-lite/underline the question.
Read through for details. Pay attention to every word.
Circle or underline key info & cross out useless information.
Draw a diagram, picture, or table if possible

31. …Plan Continued Estimate an answer if possible.
Work the problem step by step. Some problems may require several steps. Show all work to help you keep track.
Keep your math chart on your desk and use it!
Check to make sure you’ve answered the question being asked and that your answer is reasonable.
DO NOT LEAVE ANY BLANKS.

32. Keep Your Formula Chart On Your Desk
USE YOUR CHART !!!

33. Read Carefully
Take Your Time
Relax
Think Positively
You Can Do This