ninedigits workshop


nummolt
1.6.6
Old Versions

Trusted App

About ninedigits workshop

Play nine digits with your ten fingers Add skills on 3 digits addition +trading

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.

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

What's New in the Latest Version 1.6.6

Last updated on Mar 10, 2024
1.6.6 v.17 sdk34 +Privacy Policy

Additional Game Information

Latest Version

1.6.6

Uploaded by

Aman Johar Bishnoi

Requires Android

Android 4.0+

Available on

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Security Report

ninedigits workshop

1.6.6

The Security Report will be available soon. In the meantime, please note that this app has passed APKPure's initial safety checks.

SHA256:

97c8febd3d0d1976f510cd5b03bfe4ed2750c24c5e5139c8c55fab59194d8706

SHA1:

448def5e6f7d39f6213a5da4f9c75742f8b57031