1. 2nd: Take out Comp Book, pen, AZMerit formula, homework
Monday Homework: Scientific Notation & Transformation Review Worksheet
1st: Planner
2nd: Take out Comp Book, pen, AZMerit formula, homework
3rd: Warm up on back of homework sheet for today (USE MY POINTS!!!!)
4th: Practice Math Facts
C(-2, -5)
5 minute timer

6. C(-2, -5)

7. Critical thinking…
You can click and drag an icon on a computer screen. This is an example of what kind of transformation? Why?

8. Transformations

9. Transformations

10. Monday: Scientific notation Tuesday: data displays
Dress Code
Math Facts – Formulas
Homework Questions
Tape in Exponents Foldable
Scientific Notation Notes
This Week:
Monday: Scientific notation
Tuesday: data displays
Wednesday: misleading graphs
Thursday: Quiz: exponents, data display, scientific notation
Friday: No school

11. 10.5 & 10.6 Reading & Writing Scientific Notation
--BEFORE you write your new essential question:
Tape in Exponents Foldable on the next page then skip 2-3 pages-
10.5 & 10.6 Reading & Writing Scientific Notation
Essential Question: How can you read or write numbers in scientific notation?

12. 1.79 x 10 standard form=written as normal # ex. 5,400
scientific notation # written as two factors using power of 10 7
1.79
x 10
A power of 10
A number of 1-9 in front of decimal

13. Example 1
Tell whether the number is written in scientific notation. Explain. 5.9 × 10 −6 0.9 × × × 10 7

14. RULES – Standard Form Scientific Notation. 1
RULES – Standard Form Scientific Notation 1. Always start at the DECIMAL (or imaginary decimal ex. 5 is 5.0)
2. Make scoops from the decimal & Stop when there is only digit of to the left of decimal
3. Count the scoops, NOT the zeros, this is your exponent
4. A standard form # less than one,
will have a negative exponent
5. A standard form # greater than 9
will have a positive exponent

15. Example 2: Write the number in scientific notation
57, ,000,

16. Example 3
Google purchased YouTube for $1,650,000,000 Write this number in scientific notation.
Example 4
The 2004 Indonesian earthquake slowed the rotation of the Earth, making the length of a day second shorter.
Write this number in scientific notation.

17. Scientific Notation Standard Form
positive exponent means move the decimal to the right,
negative exponent means move the decimal to the left.

18. positive exponent move decimal right,
negative exponent move decimal left.
Write the number in standard notation.
1.35  105
1.35  10 5
10 = 100,000 5
1.35  100,000
135,000
Think: Move the decimal right 5 places.

19. positive exponent move decimal right,
negative exponent move decimal left.
Write the number in standard notation.
2.7  10–3
0.0027
Think: Move the decimal left 3 places.

20. Example 5
Write the following in standard form × 10 −4 7.9 × × × 10 − × 10 4

21. Example 6
Order the numbers from least to greatest

22. Example 7

23. Multiply or Divide #’s in Scientific Notation:
Divide. (keep base of 10 & subtract exponents) 20.5× 10 −3 5.0× 10 2
Multiply. (keep base of 10 then add exponent)
2.5× 10 −4 ×(6× 10 −3 )

24. Whiteboards
15.2× × × 10 −5 ×(4.3× 10 2 )

25. The number of coins in Ty’s jar was 0
The number of coins in Ty’s jar was 0.76  105 and number of coins in Laurel’s jar was 9.3  104. In which jar are there more coins?
Ty’s jar: 0.76  Laurel’s jar: 9.3  104
Ty: Laurel:
Laurel’s jar has more coins in it.

26. In scientific notation, each cable can hold 3.0  105 pounds.
An oil rig can hoist 2,400,000 pounds with its main derrick. It distributes the weight evenly between 8 wire cables. What is the weight that each wire cable can hold? Write the answer in scientific notation.
Find the weight each cable is expected to hold by dividing the total weight by the number of cables.
2,400,000 pounds ÷ 8 cables = 300,000 pounds per cable
Each cable can hold 300,000 pounds.
Now write 300,000 pounds in scientific notation.
3.0  10
In scientific notation, each cable can hold 3.0  105 pounds.

27. Word Problem

28. Word Problem

29. To Add or Subtract #’s in Scientific Notation:
If they have the same power of 10  add or subtract the factors and keep the power.
If the have different powers of 10:
rewrite the numbers so they are both in standard form, then add or subtract, and finally put back into scientific notation.
** Check to make sure your final answer is in scientific notation! **

30. Example 1

31. Whiteboards
7.2× 10 −6 +(5.44× 10 −6 ) 8.2× (3.41× 10 −1 ) 7.8× 10 −5 −(4.5× 10 −5 )