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Math Lesson 1-9 a  and 1-9 b Scientific notation
Objective:  Convert  numbers in scientific  notation and  into standard form.
2. For a number to be  in scientific notation,  there must be  one number only in  front of the  decimal and that  number cannot be zero.
Examples:   1.3 x 1𝟎𝟔 4.7 x 1𝟎−𝟑  
3. Scientific notation  that has a  positive exponent will  not be a decimal  when converted  to standard form.
Example:   Scientific notation: 𝟐 × 𝟏𝟎𝟓 Standard form:  200,000  
4. When converting a  number in scientific  notation that has a negative  exponent, it will be a  decimal in standard form.
Example:   Scientific notation:  8.7 x 1𝟎−𝟒 Standard form: 0.00087  
1.56 x 1𝟎𝟒   15,600
5 x 1𝟎𝟑   5,000
8.654 x 1𝟎𝟔   8,654,000
7.5 x 1𝟎−𝟔   0.0000075
4.6 x 1𝟎𝟐   460
4.6 x 1𝟎−𝟐   0.046
9.572 x 1𝟎𝟓   957,200
7 x 1𝟎𝟖   700,000,000
7 x 1𝟎−𝟖   0.00000007
8.7 x 1𝟎𝟔   8,700,000
8.72 x 1𝟎𝟓   872,000

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Lesson 1 9 a