Download 3 Dividing Standard Form.notebook

3 Dividing Standard Form.notebook
Standard Form
- Division
January 28, 2015
Main 1 :
write numbers in standard form
multiply numbers in standard form
The rules when writing a number in standard form:
L.O.
• write down a number between 1 and 10
• all pupils can confidently write numbers in
standard form
• all pupils can confidently multiply numbers
written in standard form
• most pupils can divide numbers written in
standard form
• you write × 10 (to the power of a number)
Dez 5­13:05
Main 1 :
write numbers in standard form
multiply numbers in standard form
Dez 9­13:05
Main 1 :
Write these numbers in scientific notation:
On your IWB...
Dez 9­13:05
Main 1 :
write numbers in standard form
multiply numbers in standard form
Write these numbers in digits:
write numbers in standard form
multiply numbers in standard form
Dez 9­13:05
Main 1 :
E.g.
write numbers in standard form
multiply numbers in standard form
Multiply these numbers:
(3 x 10 3) x (5 x 10
Dez 9­13:05
5
)
Dez 9­13:05
1
3 Dividing Standard Form.notebook
Main 1 :
January 28, 2015
write numbers in standard form
multiply numbers in standard form
Standard Form
- Division
Multiply these numbers:
L.O.
• all pupils can confidently write numbers in
standard form
• all pupils can confidently multiply numbers
written in standard form
• most pupils can divide numbers written in
standard form
Dez 9­13:05
Main 2:
Dez 5­13:05
divide numbers written in standard form
Main 2: divide numbers written in standard form
E.g.
(8 x 10 ) ÷ (5 x 10
Dividing Numbers in Standard Form
E.g.
5
(8 x 10 ) ÷ (5 x 10
-2
5
-2
)
)
This time, divide the two first bits of the standard
forms.
Any
ideas?
Divide the two second bits.
(8 ÷ 5) × (10 5 ÷ 10 -2 ) = 1.6 × 10 7
Dez 5­13:05
Main 2 :
Dez 5­13:05
divide numbers written in standard form
Rules for Division in Scientific
Notation:
Main 2 :
divide numbers written in standard form
Rules for Division in Scientific
Notation:
1) Divide the coefficients
1) Divide the coefficients
2) Subtract the exponents (base 10 remains)
2) Subtract the exponents (base 10 remains)
Example: (6 x 106) ÷ (2 x 103) = 3 x 10
3
Example: (2 x 10 7) ÷ (8 x 103) = 0. 25 x 104
0.25x10 4 = 2.5 x 103
Dez 5­13:05
Dez 5­13:05
2
3 Dividing Standard Form.notebook
Main 2 :
divide numbers written in standard form
January 28, 2015
Standard Form
Dividing:
1. WORKSHEET!!!!!!!!
2. EXTENSION QUESTIONS!!!
(5 x 10 5) ÷ (2 x 10
(11 x 10 3) ÷ (4 x 10
4
)
-2
)
Dez 5­13:05
Ext. Write the questions for these answers:
2 x 104
7 x 103
9 x 10-4
3 x 100
Dez 5­13:05
Standard Form
http://www.thatquiz.org/tq/previewtest?V/K/S/P/67091265028141
Dez 5­13:05
3