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### Course: 4th grade (2018 edition)>Unit 2

Lesson 1: Multiplication by 10s, 100s, and 1000s

# Multiplying 1-digit numbers by 10, 100, and 1000

Lindsay finds a pattern from multiplying 1-digit numbers by 10, 100, and 1000.

## Want to join the conversation?

• cant you just put a 0 at the end like 8*10=80 i just put a 0 at the end of 8 is that correct
• Yes, that would be correct. Anytime you are multiplying by powers of 10, you simply add the amount of zeros the power of 10 has to the number. For example 23* 1000= 23000. 1000 has 3 zeros so you would just add the 3 zeros to 23.
😭😭😭😭😭 I had to write this down pls upvote me!
• this is soooo cooooooool
(1 vote)
• I will eat a piece of paper if this get 6 upvotes🥶
• It has 6 upvotes now! 🙃
• i apologize if my question has been asked in the past.
he said, " if i have 1 apple and i multiply it by 0 , shouldn't i still have 1 apple? or how come it disappears?"
• Well, its 1x0 is saying, I have 1 apple per group and I have 0 groups. So how many apples are there? Well, there is 0 because there are no groups.
• "Do I have to watch the video I just want to do the math."
If your coach/teacher assigned the video then yes you have to watch the video but if you doing this on your own then you can do the math itself remember your a self learner and your in charge of what you learn I do recommend though watching the video because if you don't know how to multiply 1-digit numbers by 10, 100 , 1000 then you won't be able to do the math.
• i hope i get 3 votes