Scientific NotationEasy way to writevery, very largenumbers
The Andromeda Galaxy(closest to the Milky way)contains at least200,000,000,000 stars.Why Use Scientific Notation?
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
The Andromeda Galaxy(closest to the Milky way)contains at least200,000,000,000 stars.Why Use Scientific Notation?2 x 1011
A) 15,010 =B) 30,660,000,000 =Standard form to Scientific Notation80,600 = 8.06 x 104410x501.11010066.3 x
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
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: