1. SCIENTIFIC NOTATION
LESSON 19

2. SCIENTIFIC NOTATION
Scientific notation is used to express very large or very small numbers.
A number in scientific notation is written as the product of a number (integer or decimal) and a power of 10.
The number has one digit to the left of the decimal point.
The power of ten indicates how many places the decimal point was moved. .

3. EXAMPLES
= 5.5 x 106
We moved the decimal 6 places to the left.
A number between 1 and 10

4. EXAMPLE #2
Numbers less than 1 will have a negative exponent.
0.0075
= 7.5 x 10-3
We moved the decimal 3 places to the right.
A number between 1 and 10

5. EXAMPLE #3 CHANGE SCIENTIFIC NOTATION TO STANDARD FORM 2.35 x 108=
Standard form
Move the decimal 8 places to the right

6. EXAMPLE #4 9 x 10-5 = 9 x 0.000 01 = 0.000 09 Standard form
Move the decimal 5 places to the left

7. TRY THESE Express in scientific notation 1) 421.96 2) 0.04213) 4)

8. TRY THESE Change to Standard Form 1) 4.21 x 105 2) 0.06 x 103

9. CLASSWORK
Scientific Notation worksheet Lesson 19