Operations involving Scientific Notation (x , ÷ , + , −)

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Presentation transcript:

Operations involving Scientific Notation (x , ÷ , + , −) 8th Grade Math

WARM UP Simplify the following: 1. 𝟏 −𝟑 ∙ 𝟏 𝟐 𝟐 𝟎 ∙𝟐∙ 𝟏 −𝟒 = 1. 𝟏 −𝟑 ∙ 𝟏 𝟐 𝟐 𝟎 ∙𝟐∙ 𝟏 −𝟒 = 4.5 x 1.9 = 23.4 ÷2.2=

Scientific Notation Scientific Notation Standard Form REVIEW FROM YESTERDAY Scientific Notation Standard Form 2.3 x 10 3 2300 1.2 x 10 −5 .000012 4.567 x 10 8 456700000

Scientific Notation With a partner, decide which of these are in scientific Notation 3.41 x 10 8 45.6 x 10 3 2.3 x 10 −3

Scientific Notation With a partner, decide which of these are in Standard form .00115 450,020,000 -5

Operations involving Scientific Notation (x , ÷ , + , −) What are words that mean x Times multiply

Operations involving Scientific Notation (x , ÷ , + , −) ? Operations involving Scientific Notation (x , ÷ , + , −) The world population is bout 77 billion. There are 4.6× 10 7 ants for every human on the planet. About how many ants are there in the world?

Operations involving Scientific Notation (x , ÷ , + , −) ? Operations involving Scientific Notation (x , ÷ , + , −) The mass of the moon is about 7.3 × 𝟏𝟎 𝟐𝟐 kg. It would take approximately 26,000,000 moons to equal the mass of the sun. Determine the mass of the sun.

Operations involving Scientific Notation (x , ÷ , + , −) What are words that mean ÷ Divide quotient per

Operations involving Scientific Notation (x , ÷ , + , −) Operations involving Scientific Notation (x , ÷ , + , −) A certain social media company processes about 990 billion likes per year. If the company has approximately 8.9× 10 8 users of the social media, about how many likes is each user responsible for per year? Write your answer in scientific and standard notation

Operations involving Scientific Notation (x , ÷ , + , −) The speed of light is 300,000,000 meters per second. The sun is approximately 1.5 × 10 11 meters from Earth. How many seconds does it take for sunlight to reach Earth?

Operations involving Scientific Notation (x , ÷ , + , −) The mass of Earth is approximately 5.9 × 10 24 kg, and the mass of Venus is approximately 4.9 × 10 24 kg. How much bigger is Earth than Venus?