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Multiplying and Dividing

Multiplying and Dividing. By: Jenny Erickson. Multiplying in Scientific Notation. Multiplying…. The general format for multiplying is as follows… (N x 10 x )(M x 10 y ) = (N)(M) x 10 x+y First multiply the N and M numbers together and express an answer.

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Multiplying and Dividing

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  1. Multiplying and Dividing By: Jenny Erickson

  2. Multiplying in Scientific Notation

  3. Multiplying… • The general format for multiplying is as follows… • (N x 10x)(M x 10y) = (N)(M) x 10x+y • First multiply the N and M numbers together and express an answer. • Secondly multiply the exponential parts together by adding the exponents together.

  4. Multiplying… • Finally multiply the two results for the final answer. • (2.41 x 104)(3.09 x 102) • 2.41 x 3.09 = 7.45 • 4 + 2 = 6 • 7.45 x 106

  5. Now it’s your turn. • Use the link below to practice multiplying numbers in scientific notation. • Multiplying in Scientific Notation

  6. Dividing in Scientific Notation

  7. Dividing… • The general format for dividing is as follows… • (N x 10x)/(M x 10y) = (N/M) x 10x-y • First divide the N number by the M number and express as an answer. • Secondly divide the exponential parts by subtracting the exponent from the exponent in the upper number.

  8. Dividing… • Finally multiply the two results together to get the final answer. • (4.89 x 107)/(2.74 x 104) • 4.89 / 2.74 = 1.78 • 7 – 4 = 3 • 1.78 x 103

  9. Now it’s your turn. • Use the link below to practice dividing numbers in scientific notation. • Dividing in Scientific Notation

  10. Quiz Time!!! • Below is a set of links for a quiz on multiplying and dividing numbers in scientific notation, and there is a link to get the answers to the quiz. • Quiz on Multiplying and Dividing • Answers to Quiz

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