Double Division with 3 Digit Divisors 612416/983

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

Teaching Long Division and Double Division

"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