ninedigits workshop

1.6.6

nummolt

0.00

0 reviews

10,000+
Downloads

Free

Nine digits. Improve skills on 3 digits addition. Needs reflections about MOD 9

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About ninedigits workshop

ninedigits workshop is a puzzle app developed by nummolt.

Download Statistics

ninedigits workshop has been downloaded 19 thousand times. In the last 30 days, the app was downloaded 2 times.

User Ratings

The app has no ratings yet.

App Information

ninedigits workshop is FREE to download. The APK download size is 2.13 MB. The latest version available is 1.6.6. The last update was on November 25, 2023.

Technical Requirements

ninedigits workshop requires Android 4.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play December 2012.

Description

The game is about to find solutions sorting the digits from 1 to 9 in a square of 3 * 3 where the sum of the numbers of the two top rows is equal to the bottom row.

This puzzle is aimed on reflection on the commutative property of addition.

This program is aimed at reflecting on the addition. The goal is to find results that meet the primary condition. We must be aware that after obtaining a correct result can be achieved more easily results having in mind the properties of the sum.

Interaction:
To swap two digits must be done tap on each digit, then the digits change the color, and the exchange occurs.

From:
http://www.nummolt.com/obbl/ninedigits/ninedigitsbasic.html
nummolt - Obbl - Math Toys collection - Mathcats.

Ninedigits has 336 solutions. If the program would be easy for someone, then the goal could be to find valid solutions in which a Queen (Lady) could travel chess boxes 1 to 9 making right moves to this tab. According to our analysis, there are 3 solutions of this type. You can also look under the same condition, but with the Tower (Rock) of chess. This combination of conditions has only one solution. The program clearly shows the production of these special results.

As a safety mechanism, the delete button only works when the program displays a correct solution of the problem.

Registered in Math Tools (MathForum):
http://mathforum.org/mathtools/tool/234619/
Classified for courses:
Math 2 Addition
Math 3 Addition, Mental math
Math 4 Addition, Mental math
Math 5 Addition, Mental math, Commutative
Math 6 Addition, Mental math, Commutative
Math 7 Mental math, Commutative

Aligned with Common Core Math:

Grade 3 and up:
Grade 3 » Number & Operations in Base Ten
CCSS.Math.Content.3.NBT.A.2
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

Origin of the game:
The ninedigits is based on an new idea described in a Martin Gardner's. mathematical book of diversions: published in 1966.

Nine Digits and the chain of numbers problem:
All the right results involve an addition of 3 digits with trading.

To get results quickly you have to reflect on module 9 of each line.
The third line, the result line, will always be MOD 9= 0
And the sum of the MOD 9 of each the first two lines will also be 0.

Nummolt apps: Math Garden: Prime Numbers Barn and Numbers Mill

Recent changes:
1.6.6 v.17 sdk34 +Privacy Policy

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More data about ninedigits workshop

Price	Free to download
Total downloads	19 thousand
Recent downloads	2
Rating	No ratings
Ranking	Not ranked
Version	1.6.6
APK size	2.13 MB
Number of libraries	3
Designed for Android	4.0+
Suitable for	Everyone
Ads	NO ads

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ninedigits workshop compared with similar apps

Common keywords of similar apps

Addition Results Mental Ninedigits Solutions Commutative Program Mod Line Aimed Goal Condition Correct Result Properties Http Obbl Nummolt Problem Grade Operations Based Math Digits Numbers Find Sum Game Chess Solution

Keywords missing from this app

Number Sudoku Puzzle Puzzles Logic Play Games Board Row Challenge Column Brain Sums Match Classic Features Free Grid Difficulty Time Skills Queens Rows Level Make Regions Ten Queen Fun Easy Recent Daily Train Simple Killer Levels Highlight Playing Add Kakuro Fill Hard

Downloads over time

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ninedigits workshop has been downloaded 19 thousand times. Over the past 30 days, it has been downloaded 2 times.

Changelog of ninedigits workshop

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Developer information for nummolt

nummolt

nummolt@gmail.com

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Google Play Rankings for ninedigits workshop

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Technologies used by ninedigits workshop

1 permissions · 3 libraries

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