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Do Now 12/16/09Do Now 12/16/09 Take out your HW from Monday & Tuesday.Take out your HW from Monday & Tuesday.
Text p. 202, #16-50 evens, 56 & 58Text p. 202, #16-50 evens, 56 & 58 Practice worksheet 4.6 B evensPractice worksheet 4.6 B evens Punchline worksheet #64Punchline worksheet #64
Copy HW in your planner.Copy HW in your planner. Text p. 207, #14-34 evens, #40-50 evensText p. 207, #14-34 evens, #40-50 evens
In your notebook, write the number one billion and one million as a number. Then multiply the two of them together. What is your answer?
Homework Text p. 202, #16–50 evens, #56 & #58
613
1
98
1
x
5
6
g
25
58 c
410
33
1
yx 34
2
2
s
1010
1
1110
4
28
a
16)
18)
20)
22)
24)
26)
28)
30)
32)
34)
36)
38)
40)
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1
715
9
5
b611g
5
6
n
m
3
3
b
a
42)
44)
46)
48)
50)
56)
58)
125or
Homework Practice worksheet 4.6 Form B evens
314
1
518
1
d
24
13 273 or
112 6373 or
422
zy 56
845h
1112
1
610
810
1
1114r
17
15u
2)
4)
6)
8)
10)
12)
14)
16)
18)
20)
22)
24)
26)
8
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28)
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HomeworkPunchline worksheet #64
WALT IS PULLING THE WOOL OVER OUR ICEWALT IS PULLING THE WOOL OVER OUR ICE
““WHAT DID PEOPLE SAY WHEN WALTER WHAT DID PEOPLE SAY WHEN WALTER GEARLOOSE TRIED TO DRAG HIS SHEEP GEARLOOSE TRIED TO DRAG HIS SHEEP
ACROSS A FROZEN POND?”ACROSS A FROZEN POND?”
ObjectiveObjective
SWBAT use scientific notation to represent very large or very small numbers.
Scientific notationScientific notation is a is a form to write very large or form to write very large or very small numbers.very small numbers.
9106.5000,000,000,16.5000,000,600,5
Did you know that the population of the world is about 5,600,000,000? Did you know that the population of the world is about 5,600,000,000? Instead of writing this number with so many zeros, you can use the following Instead of writing this number with so many zeros, you can use the following form: form:
Section 4.7, “Scientific Notation”Section 4.7, “Scientific Notation”
The Powers of Ten
A number is written in scientific notation A number is written in scientific notation
if it has the form: if it has the form:
where c is greater than or equal to 1 but less than 10.where c is greater than or equal to 1 but less than 10.
nc 10
3104.310004.3 3400Product form Scientific notation
4102.30001.02.3 00032.0**HINT: How many spots has the decimal point moved?**HINT: How many spots has the decimal point moved?
Standard form
Write the number in scientific notation.Write the number in scientific notation.
1)
2)
3)
4)
610562.4000,000,1562.4 000,562,4
310201.8001.0201.8 008201.0
Write the number in standard form.Write the number in standard form.
000,859000,10059.8 51059.8
000599.00001.099.5 41099.5
Multiplying with Scientific Multiplying with Scientific NotationNotation
To multiply two numbers that are written in scientific notation, you can use the rule for multiplying powers with like bases.
)102.3( 5 )104( 6Find the product of and Find the product of and
Write the product
Reorder
Multiply
Write in scientific notation
)101042.3( 65 )102.3( 5 )104( 6
)10()8.12( 11121028.1
Evaluate the product.Evaluate the product.
)103.0( 4 )106.0( 1Find the product of and Find the product of and
Write the product
Reorder
Multiply
Write in scientific notation
)10106.03.0( 14 )103.0( 4 )106.0( 1
)10()18.0( 56108.1
Standard formStandard form0000018.0
Homework Text p. 207, #14-34 evens, #40-50 evensText p. 207, #14-34 evens, #40-50 evens
Do Now 1/8/09Do Now 1/8/09 Copy HW in your planner.Copy HW in your planner.
Text p. 207, #14-34 evens, #40-50 evensText p. 207, #14-34 evens, #40-50 evens
In your notebook, write the following expressions using only positive exponents.62 33 83
2
5
4
4 34
64 33 23
1
26
26
1
7
3
8
8
4889
62
21
14
yx
yx
2113
2
yx
HomeworkHomeworkBrain Game Text p. 198Brain Game Text p. 198
The ones digit for the first four powers of 3 are (in order) 3, 9, 7, 1, and these digits repeat in this same order for succeeding powers of 3;
The ones digit is 1 for . 1003
