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00:28  Why number 10 is used as base 
00:46  Question 1 
01:05  Number Place 
02:59  Tens Place & Ones Place 
04:30  Number Places of Three digit numbers 
05:59  Separator 
06:14  Question 2 
06:22  Place Value 
07:08  Using Zeros 
07:36  Place Value in Action 
08:36  Summary 
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