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Copyright © Swun MathCopyright © Swun Math Grade 8 Unit 3 Lesson 6 P TE

Scientific Notation: Multiply

& Divide

Procedural Lesson
Grade 8 · Unit 3 · Lesson 6
MC: 8 .EE. 4 

Problem of the Day

Objective: I will multiply or divide numbers in scientific notation.

Vocabulary Teacher Resources

Multiplying in Scientific Notation

1. Multiply coefficients.


2. Add exponents.
   (3 × 102 ) ( 5 × 104 ) =

3 × 5 = 15

10 2+4 = 10^6

15 × 106

1.5 × 107

Proper Scientific Form

Dividing in Scientific Notation^

1. Divide coefficients.


2. Subtract exponents.

(15 × 106 ) ÷ ( 3 × 102 ) =

15 ÷3 = 5

10 6-2 = 10^4

5 × 104

Considerations:

Review the exponent rules for multiplication and

division. Students may also need to see how the

commutative and associative properties help simplify

these problems.

Steps:

1. Check for numbers in scientific notation.


2. If multiplying-
   
   
   • Multiply coefficients.
   
   
   • Add exponents.
   
   
   
   


3. If dividing-
   
   
   • Divide coefficients.
   
   
   • Subtract exponents.
   
   
   
   


4. Write in scientific notation.

Application of MPs:

MP6: Pay attention to precision; why is this an

important concept for this lesson?

In this lesson, it is important to pay attention to

precision because _____________________.

MP8: How would you prove that the solution is correct?

I can prove that my solution is correct by

changing ___________________________.

1 2 3 4 5 6 7 8

* * * * *

MPs

Applied MP

* Embedded MP

Student Journal Pages

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