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### Course: 6th grade>Unit 2

Lesson 6: Multiplying decimals

# Decimal multiplication place value

When we rewrite decimal multiplication using fractions, we can use the commutative and associative properties of multiplication to justify how we place the decimal point in the standard multiplication algorithm. Created by Sal Khan.

## Want to join the conversation?

• how did you know all of this
• because hes just smart like that
(1 vote)
• i don´t get why he does all this work when you can just use a calculator 🫥
• I think he does this work to help us understand the process better. Also, this information would help if you were on a math test and you were not allowed to use a calculator.
• Isn't their an easier way to multiply decimals?
• There*. And also, no. There is not.
(1 vote)
• hello im from the year 2023
• I'm from '2024'
(1 vote)
• and also why is he shouting ten THOUSANDTHS
• You just divide 4575 by 10 4 times and you’ll get .4575