Multiply by negative powers of 10

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
2145 views | 1 rating
Meets NCTM Standards:
Lesson Summary:

In this lesson, Julie Harland teaches how to multiply numbers by negative powers of 10, which is a preparation for scientific notation. She explains that when we multiply by powers of 10 with negative exponents, we're actually dividing by a power of 10. Therefore, the answer is always a smaller number, which means we need to move the decimal point to the left. By the end of the lesson, students will learn the definition of scientific notation and how to convert a number from standard form to scientific notation.

Lesson Description:

This is preparing for an introduction to Scientific Notation. In this video, we multiply numbers by powers of 10 when the exponents are negative.

More free YouTube videos by Julie Harland are organized at

Questions answered by this video:
  • What is scientific notation?
  • How do your write numbers from scientic notation to standard form?
  • How do you write numbers from scientific notation with negative exponents to standard form?
  • HOw do you write numbers from scientific notation with both positive and negative exponents to standard form?
  • Staff Review

    • Currently 4.0/5 Stars.
    There are many examples for how to write numbers from scientific notation to standard form using both positve and negative exponents. There is also an introdution to write numbers from standard for to scientific notation.