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### Course: Arithmetic>Unit 14

Lesson 2: Multi-digit multiplication

# Understanding the standard algorithm for multiplication

The standard algorithm for multiplying whole numbers involves breaking the numbers down into their place values and multiplying each place value separately. This process is illustrated through three examples: one complete walkthrough, one where the viewer is asked to identify mistakes in incorrect solutions, and one where the viewer is asked to fill in a missing number. Created by Sal Khan.

## Want to join the conversation?

• I can't wait for summer break..
• school just started :(
• why is the line he makes so straight
• he used a line tool, he didnt draw that
• hes neat
• i pretty like this guy
/
• not gonna lie
• Everytime is do this standard algorithim thing i always get it wrong
• You just butterfly it meaning multiply across
• wowza this is so easy because im in fifth grade
(1 vote)
• This is hard do you have any other videos to help me on this.
(1 vote)
• In the Arithmetic Course, there are units (1, 2, and 7 specifically) about multiplication. In addition, I think that learning about place value (unit 5 from the same course) will be helpful too.

I'm not Khan, but I hope that these recommendations can help you.

Good luck.
(1 vote)
• italics abcdefghijklmnopqrstuvwxyz is that the alphabet
(1 vote)
• How can i change my profile
(1 vote)