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Lesson 3: Multi-digit multiplication

# Multiplying multi-digit numbers: 6,742x23

Learn the standard algorithm for multi-digit multiplication. Watch as the instructor breaks down the process step by step, demonstrating how to multiply each digit and carry over numbers. Created by Sal Khan.

## Want to join the conversation?

• upvote if you just look at comments
• the comments are more entertaining than the video , but sometimes ill watch it.
• i dont think that people use math that much anymore, they use calculators
• Hi, you still need to know math to be able to use calculators in a good way. So keep learning math and you will do well with calculators too :) Without knowledge in math a person cannot keep learning and doing things with math, even if they have a calculator.
• I think i know that question?
Hi dsupraja05
So like he said when you multiply you half to add to get your awenser beacuse when you stack your numbers you will just have a number cake so that is why you add. -I think
• Why does Sal use so many different colors?
• To make it pop out
• Why do I keep failing?!😭
• 6742 x 23 well when you finish mulipling the 3 you add a zero below the ones place because 20+3 = 23 the zero you add is cause the 2 is the tens place then you multiply 2 x 6742