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			3nbt1
		
		
			Each worksheet has 10 problems estimating an answer.
		
		
		
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			Each worksheet has 20 problems finding a number that rounds to another number.
		
		
		
	Version 1
  Version 2
  Version 3
  Version 4
  Version 5
  Version 6
  Version 7
  Version 8
  Version 9
  Version 10
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			Each worksheet has 10 problems rounding a number to the nearest 100 with a numberline.
		
		
		
	Version 1
  Version 2
  Version 3
  Version 4
  Version 5
  Version 6
  Version 7
  Version 8
  Version 9
  Version 10
 Grab 'em All
Create New Sheet
			
			Each worksheet has 10 problems rounding a number to the nearest 10 with a numberline.
		
		
		
	Version 1
  Version 2
  Version 3
  Version 4
  Version 5
  Version 6
  Version 7
  Version 8
  Version 9
  Version 10
 Grab 'em All
Create New Sheet
			
			Each worksheet has 20 problems rounding a number to the nearest 10 or 100.
		
		
		
	Version 1
  Version 2
  Version 3
  Version 4
  Version 5
  Version 6
  Version 7
  Version 8
  Version 9
  Version 10
 Grab 'em All
Create New Sheet