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# Scientific notation explaination positve

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### Scientific notation explaination positve

1. 1. Scientific NotationEasy way to writevery, very largenumbers
2. 2. The Andromeda Galaxy(closest to the Milky way)contains at least200,000,000,000 stars.Why Use Scientific Notation?
3. 3. Scientific Notation…..►a # written with two factors► one factor isless than 10 AND 1 or greater► the other factor is a power of 10(a positive or negative power)Example: 2.3 x 1032300 =Hint: When multiplying by powers of tenmove the decimal either right or left
4. 4. The Andromeda Galaxy(closest to the Milky way)contains at least200,000,000,000 stars.Why Use Scientific Notation?2 x 1011
5. 5. A) 15,010 =B) 30,660,000,000 =Standard form to Scientific Notation80,600 = 8.06 x 104410x501.11010066.3 x
6. 6. How do you change thenumber back fromscientific notation intostandard form?You just do the opposite!The exponent tells you whichdirection to move your decimalto get it back where it was.Ex. 4.5 x 10 =5450,000
7. 7. a) 2.65 x 104 =26,500b) 8.7 x 10-4 =0.00087c) 5.245 x 103 =5,245d) 1.2 x 10-2 =0.012e) 4.34 x 10-5 =0.0000434f) 3.22 x 1015 =3,220,000,000,000,000Scientific Notation to Standard form: