Showing posts with label Double Division. Show all posts
Showing posts with label Double Division. Show all posts
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Double Division with 3 Digit Divisors 612416/983

Sunday, May 30, 2010 0 comments



Method of Vietnamese Diagram: Double the Divisor 3 Times


Method of International Diagram: Double the Divisor 3 Times

Method of Vietnamese Diagram:  Double the Divisor 5 Times
It's Easy!
Step 1 - Double, double, double.
Step 2 - Subtract off multiples.
Step 3 - Add up your answer."

Photos source: Nguyen Thi Lan Phuong, http://321math.blogspot.com
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Teaching Long Division and Double Division

Friday, May 21, 2010 0 comments


"Teaching Double Division can help in teaching long division by reinforcing the principles of division and giving students success with a less frustrating alternative.
 
Double Division does not depend on memorizing the multiplication facts or estimating how many times one number goes into another. It may take 50% longer, but it is far less frustrating and probably easier to understand than Long Division.
 
It's Easy!
Step 1 - Double, double, double.
Step 2 - Subtract off multiples.
Step 3 - Add up your answer."

References:
  • http://www.doubledivision.org
  •  http://en.wikipedia.org/wiki/Long_division
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