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Lesson 1: How 10 relates to place value

# Understanding place value

Sal discusses how a digit in one place represents ten times what it represents in the place to its right. Created by Sal Khan.

## Want to join the conversation?

• writes 3500 ones in figures
• I would like to thank all of you guys for all the help.
• im 9 and i know division i love divison its teaching me everything im 9 in the fourth grade hi
• hi guys im sorry this is not a question but i just wanted to apologize once again for not giving you stars i really did not mean it . it was by a mistake pleasee dont fire anyone . thanks bye
• I don't understand the question which involve LEFT.
someone here to assist me.
• hey imagin theres 1 arrow going left and another one facing right and there a number like this one here 450 add that number with this one here 390 add them from right to left bc the anwser is gonno be 840
• Im struggling with understanding place value and place value multiplying and dividing by 10
• Let's say you have a number 0001.0000 (the zeroes before and after the one don't hold any value) if you were to multiply this number by 10 you would move the decimal to the right once so the new number would be 00010.00 multiply it by 10 again and you get 000100.0