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. Order of Operations P – Parenthesis () First E – Exponents Second M/D – Multiplication & Division from left to right A/S – Addition & Subtraction from left to right

4. TABLES AND PATTERNS 1234n 147103n-2 Look at the relationship of the top number to the bottom number This Pattern: Multiply by 3 then subtract 2 Place in Sequence Term

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

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

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

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

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

10. Percent Problems Part Whole % 100 is of % 100 Difference 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) ProportionalNot Proportional

13. Pythagorean Theorem & Special Case Right Triangles 3 4 5 13 12 5 hypotenuse leg 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. Pythagorean Theorem a b c Important points: Only works with RIGHT triangles. The longest side (opposite the right angle) must be labeled “c”. Shapes drawn on the sides must be SQUARES. c² b² a²

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

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

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

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

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

20. Scale Factors 3 in x 6 in 10 in To find the scale factor of similar figures new old

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 Is not a problem Top x top & Bottom x Bottom Remember to Reduce!!!

23. Dividing Fractions Don’t ask why, Flip the 2 nd 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 NO!!!

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

27. Common Equivalents

28. Griddable Responses 0 1 2 5 4 3 6 9 8 7 0 1 2 5 4 3 6 9 8 7 0 1 2 5 4 3 6 9 8 7 0 1 2 5 4 3 6 9 8 7 0 1 2 5 4 3 6 9 8 7 0 1 2 5 4 3 6 9 8 7 0 1 2 5 4 3 6 9 8 7 0 1 2 5 4 3 6 9 8 7 0 1 2 5 4 3 6 9 8 7 0 1 2 5 4 3 6 9 8 7 0 1 2 5 4 3 6 9 8 7 0 1 2 5 4 3 6 9 8 7 0 1 2 5 4 3 6 9 8 7 0 1 2 5 4 3 6 9 8 7 7 3

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

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