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Lesson 4: Multiplying and dividing with powers of 10

# Fractions as division by power of 10

Explore the concept of multiplying and dividing numbers by powers of 10. Understand how moving the decimal point to the left or right changes the value of a number, and how this relates to the concept of fractions as division. Created by Sal Khan.

## Want to join the conversation?

• If this comment gets 15 upvotes I will spam this video 50 times saying the most voted comment on my post.
• Would it be the sames if was 10/34?
• No, if it was 10/34, it would not be the same. That is because the numerator and denominator are not the same now. The answer (I got it from a calculator) is :
0.29411764705882352941176470588235‬
• i actully really dont get it hot did he make 34/10 into 3.4
• Dividing by 10 is the same as moving the decimal point one place to the left.
Note that 34 has a hidden decimal point just to the right of the digit 4.
So 34/10 = 3.4

Have a blessed, wonderful day!
• So is this just dividing the two numbers to get the answer? At am. Please respond, people.
• No.You move the decimal over one spot for 10 ,two spots for 100 and so on.
• Someone in my class is playing the John Cena theme song and Mario screaming pls help me.
• Why is it harder than the others?
• whats the difference of 0.1 and -1