Tool:
Ninedigits workshop 
Screenshot:

Go to: 
http://apps.samsung.com/earth/topApps/topAppsDetail.as
(opens a new window)

Description: 
Puzzle with 9! possibilities and 336 solutions. The problem posed in Ninedigits workshops consists in the organization of the numbers 1 to 9 in a square of 3 * 3 to make the sum of the numbers of the first two rows is equal to the bottom row. This app is aimed at reflecting on the addition and commutative property of addition.
Online version:
http://www.nummolt.com/obbl/ninedigits/ninedigitsbasic.html 
Technology Type: 
Android  
Guide: 
User's Guide
(opens a new window)

Author: 
Wendy Petti & Maurici Carbo 
Language: 
English  
Cost: 
Requires payment for use 

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Courses: 
Math 2 
Addition 
 Math 3 
Operations with numbers, Addition 
 Math 4 
Addition, Mental math 
 Math 5 
Addition, Commutative 
 Math 6 
Addition, Mental math, Commutative 
 Math 7 
Mental math, Commutative 
